aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2019,2020 Thomas E. Dickey                                *
   3 dnl Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
   4 dnl                                                                          *
   5 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
   6 dnl copy of this software and associated documentation files (the            *
   7 dnl "Software"), to deal in the Software without restriction, including      *
   8 dnl without limitation the rights to use, copy, modify, merge, publish,      *
   9 dnl distribute, distribute with modifications, sublicense, and/or sell       *
  10 dnl copies of the Software, and to permit persons to whom the Software is    *
  11 dnl furnished to do so, subject to the following conditions:                 *
  12 dnl                                                                          *
  13 dnl The above copyright notice and this permission notice shall be included  *
  14 dnl in all copies or substantial portions of the Software.                   *
  15 dnl                                                                          *
  16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  23 dnl                                                                          *
  24 dnl Except as contained in this notice, the name(s) of the above copyright   *
  25 dnl holders shall not be used in advertising or otherwise to promote the     *
  26 dnl sale, use or other dealings in this Software without prior written       *
  27 dnl authorization.                                                           *
  28 dnl***************************************************************************
  29 dnl
  30 dnl Author: Thomas E. Dickey 1995-on
  31 dnl
  32 dnl $Id: aclocal.m4,v 1.897 2020/02/29 21:30:04 anonymous.maarten Exp $
  33 dnl Macros used in NCURSES auto-configuration script.
  34 dnl
  35 dnl These macros are maintained separately from NCURSES.  The copyright on
  36 dnl this file applies to the aggregation of macros and does not affect use of
  37 dnl these macros in other applications.
  38 dnl
  39 dnl See these pages for additional information:
  40 dnl             https://invisible-island.net/autoconf/
  41 dnl             https://invisible-island.net/autoconf/my-autoconf.html
  42 dnl
  43 dnl ---------------------------------------------------------------------------
  44 dnl ---------------------------------------------------------------------------
  45 dnl AM_LANGINFO_CODESET version: 4 updated: 2015/04/18 08:56:57
  46 dnl -------------------
  47 dnl Inserted as requested by gettext 0.10.40
  48 dnl File from /usr/share/aclocal
  49 dnl codeset.m4
  50 dnl ====================
  51 dnl serial AM1
  52 dnl
  53 dnl From Bruno Haible.
  54 AC_DEFUN([AM_LANGINFO_CODESET],
  55 [
  56 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
  57         [AC_TRY_LINK([#include <langinfo.h>],
  58         [char* cs = nl_langinfo(CODESET);],
  59         am_cv_langinfo_codeset=yes,
  60         am_cv_langinfo_codeset=no)
  61         ])
  62         if test $am_cv_langinfo_codeset = yes; then
  63                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
  64                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  65         fi
  66 ])dnl
  67 dnl ---------------------------------------------------------------------------
  68 dnl CF_ABI_DEFAULTS version: 2 updated: 2015/06/06 13:49:58
  69 dnl ---------------
  70 dnl Provide configure-script defaults for different ncurses ABIs.
  71 AC_DEFUN([CF_ABI_DEFAULTS],[
  72 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
  73 case x$cf_cv_abi_version in
  74 (x[[6789]])
  75         cf_dft_ext_colors=yes
  76         cf_dft_ext_const=yes
  77         cf_dft_ext_mouse=yes
  78         cf_dft_ext_putwin=yes
  79         cf_dft_ext_spfuncs=yes
  80         cf_dft_filter_syms=yes
  81         cf_dft_chtype=uint32_t
  82         cf_dft_mmask_t=uint32_t
  83         cf_dft_interop=yes
  84         cf_dft_tparm_arg=intptr_t
  85         cf_dft_with_lp64=yes
  86         ;;
  87 (*)
  88         cf_dft_ext_colors=no
  89         cf_dft_ext_const=no
  90         cf_dft_ext_mouse=no
  91         cf_dft_ext_putwin=no
  92         cf_dft_ext_spfuncs=no
  93         cf_dft_filter_syms=no
  94         cf_dft_chtype=auto
  95         cf_dft_mmask_t=auto
  96         cf_dft_interop=no
  97         cf_dft_tparm_arg=long
  98         cf_dft_with_lp64=no
  99         ;;
 100 esac
 101 ])dnl
 102 dnl ---------------------------------------------------------------------------
 103 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
 104 dnl ------------------
 105 dnl Conditionally generate script according to whether we're using a given autoconf.
 106 dnl
 107 dnl $1 = version to compare against
 108 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
 109 dnl $3 = code to use if AC_ACVERSION is older than $1.
 110 define([CF_ACVERSION_CHECK],
 111 [
 112 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
 113 ifdef([m4_version_compare],
 114 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
 115 [CF_ACVERSION_COMPARE(
 116 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
 117 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
 118 dnl ---------------------------------------------------------------------------
 119 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
 120 dnl --------------------
 121 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
 122 dnl                      MAJOR2, MINOR2, TERNARY2,
 123 dnl                      PRINTABLE2, not FOUND, FOUND)
 124 define([CF_ACVERSION_COMPARE],
 125 [ifelse(builtin([eval], [$2 < $5]), 1,
 126 [ifelse([$8], , ,[$8])],
 127 [ifelse([$9], , ,[$9])])])dnl
 128 dnl ---------------------------------------------------------------------------
 129 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
 130 dnl -------------------
 131 dnl Construct the list of include-options for the C programs in the Ada95
 132 dnl binding.
 133 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
 134 [
 135 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
 136 if test "$srcdir" != "."; then
 137         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
 138 fi
 139 if test "$GCC" != yes; then
 140         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 141 elif test "$includedir" != "/usr/include"; then
 142         if test "$includedir" = '${prefix}/include' ; then
 143                 if test x$prefix != x/usr ; then
 144                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 145                 fi
 146         else
 147                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 148         fi
 149 fi
 150 AC_SUBST(ACPPFLAGS)
 151 ])dnl
 152 dnl ---------------------------------------------------------------------------
 153 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
 154 dnl ---------------
 155 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
 156 AC_DEFUN([CF_ADD_ADAFLAGS],[
 157         ADAFLAGS="$ADAFLAGS $1"
 158         AC_SUBST(ADAFLAGS)
 159 ])dnl
 160 dnl ---------------------------------------------------------------------------
 161 dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
 162 dnl -------------
 163 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 164 dnl The second parameter if given makes this macro verbose.
 165 dnl
 166 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 167 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 168 dnl confused by the quotes (which require backslashes to keep them usable).
 169 AC_DEFUN([CF_ADD_CFLAGS],
 170 [
 171 cf_fix_cppflags=no
 172 cf_new_cflags=
 173 cf_new_cppflags=
 174 cf_new_extra_cppflags=
 175
 176 for cf_add_cflags in $1
 177 do
 178 case $cf_fix_cppflags in
 179 (no)
 180         case $cf_add_cflags in
 181         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 182                 case $cf_add_cflags in
 183                 (-D*)
 184                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 185
 186                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 187                                 && test -z "${cf_tst_cflags}" \
 188                                 && cf_fix_cppflags=yes
 189
 190                         if test $cf_fix_cppflags = yes ; then
 191                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 192                                 continue
 193                         elif test "${cf_tst_cflags}" = "\"'" ; then
 194                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 195                                 continue
 196                         fi
 197                         ;;
 198                 esac
 199                 case "$CPPFLAGS" in
 200                 (*$cf_add_cflags)
 201                         ;;
 202                 (*)
 203                         case $cf_add_cflags in
 204                         (-D*)
 205                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 206                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 207                                 ;;
 208                         esac
 209                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 210                         ;;
 211                 esac
 212                 ;;
 213         (*)
 214                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 215                 ;;
 216         esac
 217         ;;
 218 (yes)
 219         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 220
 221         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
 222
 223         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 224                 && test -z "${cf_tst_cflags}" \
 225                 && cf_fix_cppflags=no
 226         ;;
 227 esac
 228 done
 229
 230 if test -n "$cf_new_cflags" ; then
 231         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 232         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 233 fi
 234
 235 if test -n "$cf_new_cppflags" ; then
 236         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 237         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 238 fi
 239
 240 if test -n "$cf_new_extra_cppflags" ; then
 241         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 242         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 243 fi
 244
 245 AC_SUBST(EXTRA_CPPFLAGS)
 246
 247 ])dnl
 248 dnl ---------------------------------------------------------------------------
 249 dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
 250 dnl -------------
 251 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 252 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 253 dnl but old versions (and some misinstalled ones) need that.  To make things
 254 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 255 dnl the include-path).
 256 AC_DEFUN([CF_ADD_INCDIR],
 257 [
 258 if test -n "$1" ; then
 259   for cf_add_incdir in $1
 260   do
 261         while test $cf_add_incdir != /usr/include
 262         do
 263           if test -d $cf_add_incdir
 264           then
 265                 cf_have_incdir=no
 266                 if test -n "$CFLAGS$CPPFLAGS" ; then
 267                   # a loop is needed to ensure we can add subdirs of existing dirs
 268                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 269                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 270                           cf_have_incdir=yes; break
 271                         fi
 272                   done
 273                 fi
 274
 275                 if test "$cf_have_incdir" = no ; then
 276                   if test "$cf_add_incdir" = /usr/local/include ; then
 277                         if test "$GCC" = yes
 278                         then
 279                           cf_save_CPPFLAGS=$CPPFLAGS
 280                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 281                           AC_TRY_COMPILE([#include <stdio.h>],
 282                                   [printf("Hello")],
 283                                   [],
 284                                   [cf_have_incdir=yes])
 285                           CPPFLAGS=$cf_save_CPPFLAGS
 286                         fi
 287                   fi
 288                 fi
 289
 290                 if test "$cf_have_incdir" = no ; then
 291                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 292                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 293
 294                   cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
 295                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 296                   cf_add_incdir="$cf_top_incdir"
 297                 else
 298                   break
 299                 fi
 300           else
 301                 break
 302           fi
 303         done
 304   done
 305 fi
 306 ])dnl
 307 dnl ---------------------------------------------------------------------------
 308 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 309 dnl ----------
 310 dnl Add a library, used to enforce consistency.
 311 dnl
 312 dnl $1 = library to add, without the "-l"
 313 dnl $2 = variable to update (default $LIBS)
 314 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 315 dnl ---------------------------------------------------------------------------
 316 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
 317 dnl -------------
 318 dnl     Adds to the library-path
 319 dnl
 320 dnl     Some machines have trouble with multiple -L options.
 321 dnl
 322 dnl $1 is the (list of) directory(s) to add
 323 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 324 dnl
 325 AC_DEFUN([CF_ADD_LIBDIR],
 326 [
 327 if test -n "$1" ; then
 328         for cf_add_libdir in $1
 329         do
 330                 if test $cf_add_libdir = /usr/lib ; then
 331                         :
 332                 elif test -d $cf_add_libdir
 333                 then
 334                         cf_have_libdir=no
 335                         if test -n "$LDFLAGS$LIBS" ; then
 336                                 # a loop is needed to ensure we can add subdirs of existing dirs
 337                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 338                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 339                                                 cf_have_libdir=yes; break
 340                                         fi
 341                                 done
 342                         fi
 343                         if test "$cf_have_libdir" = no ; then
 344                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 345                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 346                         fi
 347                 fi
 348         done
 349 fi
 350 ])dnl
 351 dnl ---------------------------------------------------------------------------
 352 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 353 dnl -----------
 354 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 355 dnl prepended to an existing list, since their dependencies are assumed to
 356 dnl already exist in the list.
 357 dnl
 358 dnl $1 = libraries to add, with the "-l", etc.
 359 dnl $2 = variable to update (default $LIBS)
 360 AC_DEFUN([CF_ADD_LIBS],[
 361 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 362 # reverse order
 363 cf_add_0lib=
 364 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 365 # filter duplicates
 366 for cf_add_1lib in $cf_add_0lib; do
 367         for cf_add_2lib in $cf_add_libs; do
 368                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 369                         cf_add_1lib=
 370                         break
 371                 fi
 372         done
 373         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 374 done
 375 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 376 ])dnl
 377 dnl ---------------------------------------------------------------------------
 378 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
 379 dnl ------------------
 380 dnl Append to a search-list for a nonstandard header/lib-file
 381 dnl     $1 = the variable to return as result
 382 dnl     $2 = the package name
 383 dnl     $3 = the subdirectory, e.g., bin, include or lib
 384 dnl $4 = the directory under which we will test for subdirectories
 385 dnl $5 = a directory that we do not want $4 to match
 386 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 387 [
 388 test "x$4" != "x$5" && \
 389 test -d "$4" && \
 390 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
 391         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 392         test -d $4/$3 &&          $1="[$]$1 $4/$3"
 393         test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
 394         test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
 395         test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
 396         test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
 397 }
 398 ])dnl
 399 dnl ---------------------------------------------------------------------------
 400 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 401 dnl --------------
 402 dnl use this macro for appending text without introducing an extra blank at
 403 dnl the beginning
 404 define([CF_APPEND_TEXT],
 405 [
 406         test -n "[$]$1" && $1="[$]$1 "
 407         $1="[$]{$1}$2"
 408 ])dnl
 409 dnl ---------------------------------------------------------------------------
 410 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 411 dnl --------------
 412 dnl Allow user to disable a normally-on option.
 413 AC_DEFUN([CF_ARG_DISABLE],
 414 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 415 dnl ---------------------------------------------------------------------------
 416 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 417 dnl -------------
 418 dnl Allow user to enable a normally-off option.
 419 AC_DEFUN([CF_ARG_ENABLE],
 420 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 421 dnl ---------------------------------------------------------------------------
 422 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 423 dnl -------------
 424 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 425 dnl values.
 426 dnl
 427 dnl Parameters:
 428 dnl $1 = option name
 429 dnl $2 = help-string
 430 dnl $3 = action to perform if option is not default
 431 dnl $4 = action if perform if option is default
 432 dnl $5 = default option value (either 'yes' or 'no')
 433 AC_DEFUN([CF_ARG_OPTION],
 434 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 435         if test "$enableval" != "$5" ; then
 436 ifelse([$3],,[    :]dnl
 437 ,[    $3]) ifelse([$4],,,[
 438         else
 439                 $4])
 440         fi],[enableval=$5 ifelse([$4],,,[
 441         $4
 442 ])dnl
 443 ])])dnl
 444 dnl ---------------------------------------------------------------------------
 445 dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
 446 dnl -----------
 447 dnl Check for suitable "ar" (archiver) options for updating an archive.
 448 dnl
 449 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 450 dnl as well as a workaround for breakage of make's archive rules by the GNU
 451 dnl binutils "ar" program.
 452 AC_DEFUN([CF_AR_FLAGS],[
 453 AC_REQUIRE([CF_PROG_AR])
 454
 455 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 456         cf_cv_ar_flags=unknown
 457         for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 458         do
 459
 460                 # check if $ARFLAGS already contains this choice
 461                 if test "x$ARFLAGS" != "x" ; then
 462                         cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 463                         if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 464                                 cf_cv_ar_flags=
 465                                 break
 466                         fi
 467                 fi
 468
 469                 rm -f conftest.$ac_cv_objext
 470                 rm -f conftest.a
 471
 472                 cat >conftest.$ac_ext <<EOF
 473 #line __oline__ "configure"
 474 int     testdata[[3]] = { 123, 456, 789 };
 475 EOF
 476                 if AC_TRY_EVAL(ac_compile) ; then
 477                         echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 478                         $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
 479                         if test -f conftest.a ; then
 480                                 cf_cv_ar_flags=$cf_ar_flags
 481                                 break
 482                         fi
 483                 else
 484                         CF_VERBOSE(cannot compile test-program)
 485                         break
 486                 fi
 487         done
 488         rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
 489 ])
 490
 491 if test -n "$ARFLAGS" ; then
 492         if test -n "$cf_cv_ar_flags" ; then
 493                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 494         fi
 495 else
 496         ARFLAGS=$cf_cv_ar_flags
 497 fi
 498
 499 AC_SUBST(ARFLAGS)
 500 ])
 501 dnl ---------------------------------------------------------------------------
 502 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
 503 dnl -----------------
 504 dnl Check if awk can handle big strings using printf.  Some older versions of
 505 dnl awk choke on large strings passed via "%s".
 506 dnl
 507 dnl $1 = desired string size
 508 dnl $2 = variable to set with result
 509 AC_DEFUN([CF_AWK_BIG_PRINTF],
 510 [
 511         case x$AWK in
 512         (x)
 513                 eval $2=no
 514                 ;;
 515         (*)
 516                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
 517                         | $AWK '{ printf "%d\n", length([$]0); }' 2>/dev/null | $AWK 'BEGIN { eqls=0; recs=0; } { recs++; if ([$]0 == 12000) eqls++; } END { if (recs != 1 || eqls != 1) exit 1; }' 2>/dev/null >/dev/null ) ; then
 518                         eval $2=yes
 519                 else
 520                         eval $2=no
 521                 fi
 522                 ;;
 523         esac
 524 ])dnl
 525 dnl ---------------------------------------------------------------------------
 526 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
 527 dnl ------------
 528 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
 529 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
 530 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
 531 dnl
 532 dnl Treat the configuration-variable specially here, since we're directly
 533 dnl substituting its value (i.e., 1/0).
 534 dnl
 535 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
 536 AC_DEFUN([CF_BOOL_DECL],
 537 [
 538 AC_MSG_CHECKING(if we should include stdbool.h)
 539
 540 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
 541         AC_TRY_COMPILE([],[bool foo = false],
 542                 [cf_cv_header_stdbool_h=0],
 543                 [AC_TRY_COMPILE([
 544 #ifndef __BEOS__
 545 #include <stdbool.h>
 546 #endif
 547 ],[bool foo = false],
 548                         [cf_cv_header_stdbool_h=1],
 549                         [cf_cv_header_stdbool_h=0])])])
 550
 551 if test "$cf_cv_header_stdbool_h" = 1
 552 then    AC_MSG_RESULT(yes)
 553 else    AC_MSG_RESULT(no)
 554 fi
 555
 556 AC_MSG_CHECKING([for builtin bool type])
 557
 558 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
 559         AC_TRY_COMPILE([
 560 #include <stdio.h>
 561 #include <sys/types.h>
 562 ],[bool x = false],
 563                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
 564                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
 565         ])
 566
 567 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
 568 then    AC_MSG_RESULT(yes)
 569 else    AC_MSG_RESULT(no)
 570 fi
 571 ])dnl
 572 dnl ---------------------------------------------------------------------------
 573 dnl CF_BOOL_SIZE version: 15 updated: 2017/01/21 11:06:25
 574 dnl ------------
 575 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
 576 dnl Don't bother looking for bool.h, since it's been deprecated.
 577 dnl
 578 dnl If the current compiler is C rather than C++, we get the bool definition
 579 dnl from <stdbool.h>.
 580 AC_DEFUN([CF_BOOL_SIZE],
 581 [
 582 AC_MSG_CHECKING([for size of bool])
 583 AC_CACHE_VAL(cf_cv_type_of_bool,[
 584         rm -f cf_test.out
 585         AC_TRY_RUN([
 586 #include <stdlib.h>
 587 #include <stdio.h>
 588
 589 #if defined(__cplusplus)
 590
 591 #ifdef HAVE_GXX_BUILTIN_H
 592 #include <g++/builtin.h>
 593 #elif HAVE_GPP_BUILTIN_H
 594 #include <gpp/builtin.h>
 595 #elif HAVE_BUILTIN_H
 596 #include <builtin.h>
 597 #endif
 598
 599 #else
 600
 601 #if $cf_cv_header_stdbool_h
 602 #include <stdbool.h>
 603 #endif
 604
 605 #endif
 606
 607 int main(void)
 608 {
 609         FILE *fp = fopen("cf_test.out", "w");
 610         if (fp != 0) {
 611                 bool x = true;
 612                 if ((bool)(-x) >= 0)
 613                         fputs("unsigned ", fp);
 614                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
 615                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
 616                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
 617                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
 618                 fclose(fp);
 619         }
 620         ${cf_cv_main_return:-return}(0);
 621 }
 622                 ],
 623                 [cf_cv_type_of_bool=`cat cf_test.out`
 624                  if test -z "$cf_cv_type_of_bool"; then
 625                    cf_cv_type_of_bool=unknown
 626                  fi],
 627                 [cf_cv_type_of_bool=unknown],
 628                 [cf_cv_type_of_bool=unknown])
 629         ])
 630         rm -f cf_test.out
 631 AC_MSG_RESULT($cf_cv_type_of_bool)
 632 if test "$cf_cv_type_of_bool" = unknown ; then
 633         case .$NCURSES_BOOL in
 634         (.auto|.) NCURSES_BOOL=unsigned;;
 635         esac
 636         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
 637         cf_cv_type_of_bool=$NCURSES_BOOL
 638 fi
 639 ])dnl
 640 dnl ---------------------------------------------------------------------------
 641 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
 642 dnl -----------
 643 dnl If we're cross-compiling, allow the user to override the tools and their
 644 dnl options.  The configure script is oriented toward identifying the host
 645 dnl compiler, etc., but we need a build compiler to generate parts of the
 646 dnl source.
 647 dnl
 648 dnl $1 = default for $CPPFLAGS
 649 dnl $2 = default for $LIBS
 650 AC_DEFUN([CF_BUILD_CC],[
 651 CF_ACVERSION_CHECK(2.52,,
 652         [AC_REQUIRE([CF_PROG_EXT])])
 653 if test "$cross_compiling" = yes ; then
 654
 655         # defaults that we might want to override
 656         : ${BUILD_CFLAGS:=''}
 657         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 658         : ${BUILD_LDFLAGS:=''}
 659         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 660         : ${BUILD_EXEEXT:='$x'}
 661         : ${BUILD_OBJEXT:='o'}
 662
 663         AC_ARG_WITH(build-cc,
 664                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 665                 [BUILD_CC="$withval"],
 666                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 667         AC_MSG_CHECKING(for native build C compiler)
 668         AC_MSG_RESULT($BUILD_CC)
 669
 670         AC_MSG_CHECKING(for native build C preprocessor)
 671         AC_ARG_WITH(build-cpp,
 672                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 673                 [BUILD_CPP="$withval"],
 674                 [BUILD_CPP='${BUILD_CC} -E'])
 675         AC_MSG_RESULT($BUILD_CPP)
 676
 677         AC_MSG_CHECKING(for native build C flags)
 678         AC_ARG_WITH(build-cflags,
 679                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 680                 [BUILD_CFLAGS="$withval"])
 681         AC_MSG_RESULT($BUILD_CFLAGS)
 682
 683         AC_MSG_CHECKING(for native build C preprocessor-flags)
 684         AC_ARG_WITH(build-cppflags,
 685                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 686                 [BUILD_CPPFLAGS="$withval"])
 687         AC_MSG_RESULT($BUILD_CPPFLAGS)
 688
 689         AC_MSG_CHECKING(for native build linker-flags)
 690         AC_ARG_WITH(build-ldflags,
 691                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 692                 [BUILD_LDFLAGS="$withval"])
 693         AC_MSG_RESULT($BUILD_LDFLAGS)
 694
 695         AC_MSG_CHECKING(for native build linker-libraries)
 696         AC_ARG_WITH(build-libs,
 697                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 698                 [BUILD_LIBS="$withval"])
 699         AC_MSG_RESULT($BUILD_LIBS)
 700
 701         # this assumes we're on Unix.
 702         BUILD_EXEEXT=
 703         BUILD_OBJEXT=o
 704
 705         : ${BUILD_CC:='${CC}'}
 706
 707         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
 708                 AC_MSG_ERROR([Cross-build requires two compilers.
 709 Use --with-build-cc to specify the native compiler.])
 710         fi
 711
 712 else
 713         : ${BUILD_CC:='${CC}'}
 714         : ${BUILD_CPP:='${CPP}'}
 715         : ${BUILD_CFLAGS:='${CFLAGS}'}
 716         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 717         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 718         : ${BUILD_LIBS:='${LIBS}'}
 719         : ${BUILD_EXEEXT:='$x'}
 720         : ${BUILD_OBJEXT:='o'}
 721 fi
 722
 723 AC_SUBST(BUILD_CC)
 724 AC_SUBST(BUILD_CPP)
 725 AC_SUBST(BUILD_CFLAGS)
 726 AC_SUBST(BUILD_CPPFLAGS)
 727 AC_SUBST(BUILD_LDFLAGS)
 728 AC_SUBST(BUILD_LIBS)
 729 AC_SUBST(BUILD_EXEEXT)
 730 AC_SUBST(BUILD_OBJEXT)
 731 ])dnl
 732 dnl ---------------------------------------------------------------------------
 733 dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
 734 dnl ---------------
 735 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 736 dnl into CC.  This will not help with broken scripts that wrap the compiler
 737 dnl with options, but eliminates a more common category of user confusion.
 738 dnl
 739 dnl In particular, it addresses the problem of being able to run the C
 740 dnl preprocessor in a consistent manner.
 741 dnl
 742 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 743 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 744 dnl outweighs that limitation.
 745 AC_DEFUN([CF_CC_ENV_FLAGS],
 746 [
 747 # This should have been defined by AC_PROG_CC
 748 : ${CC:=cc}
 749
 750 AC_MSG_CHECKING(\$CFLAGS variable)
 751 case "x$CFLAGS" in
 752 (*-[[IUD]]*)
 753         AC_MSG_RESULT(broken)
 754         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 755         cf_flags="$CFLAGS"
 756         CFLAGS=
 757         for cf_arg in $cf_flags
 758         do
 759                 CF_ADD_CFLAGS($cf_arg)
 760         done
 761         ;;
 762 (*)
 763         AC_MSG_RESULT(ok)
 764         ;;
 765 esac
 766
 767 AC_MSG_CHECKING(\$CC variable)
 768 case "$CC" in
 769 (*[[\ \ ]]-*)
 770         AC_MSG_RESULT(broken)
 771         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 772         # humor him...
 773         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 774         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 775         CC="$cf_prog"
 776         for cf_arg in $cf_flags
 777         do
 778                 case "x$cf_arg" in
 779                 (x-[[IUDfgOW]]*)
 780                         CF_ADD_CFLAGS($cf_arg)
 781                         ;;
 782                 (*)
 783                         CC="$CC $cf_arg"
 784                         ;;
 785                 esac
 786         done
 787         CF_VERBOSE(resulting CC: '$CC')
 788         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 789         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 790         ;;
 791 (*)
 792         AC_MSG_RESULT(ok)
 793         ;;
 794 esac
 795 ])dnl
 796 dnl ---------------------------------------------------------------------------
 797 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
 798 dnl ---------------
 799 dnl Determine the default configuration into which we'll install ncurses.  This
 800 dnl can be overridden by the user's command-line options.  There's two items to
 801 dnl look for:
 802 dnl     1. the prefix (e.g., /usr)
 803 dnl     2. the header files (e.g., /usr/include/ncurses)
 804 dnl We'll look for a previous installation of ncurses and use the same defaults.
 805 dnl
 806 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 807 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 808 dnl programs from a vendor's.
 809 AC_DEFUN([CF_CFG_DEFAULTS],
 810 [
 811 AC_MSG_CHECKING(for prefix)
 812 if test "x$prefix" = "xNONE" ; then
 813         case "$cf_cv_system_name" in
 814                 # non-vendor systems don't have a conflict
 815         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 816                 prefix=/usr
 817                 ;;
 818         (*)     prefix=$ac_default_prefix
 819                 ;;
 820         esac
 821 fi
 822 AC_MSG_RESULT($prefix)
 823
 824 if test "x$prefix" = "xNONE" ; then
 825 AC_MSG_CHECKING(for default include-directory)
 826 test -n "$verbose" && echo 1>&AC_FD_MSG
 827 for cf_symbol in \
 828         $includedir \
 829         $includedir/ncurses \
 830         $prefix/include \
 831         $prefix/include/ncurses \
 832         /usr/local/include \
 833         /usr/local/include/ncurses \
 834         /usr/include \
 835         /usr/include/ncurses
 836 do
 837         cf_dir=`eval echo $cf_symbol`
 838         if test -f $cf_dir/curses.h ; then
 839         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
 840                 includedir="$cf_symbol"
 841                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
 842                 break
 843         fi
 844         fi
 845         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 846 done
 847 AC_MSG_RESULT($includedir)
 848 fi
 849 ])dnl
 850 dnl ---------------------------------------------------------------------------
 851 dnl CF_CGETENT version: 6 updated: 2017/01/21 11:06:25
 852 dnl ----------
 853 dnl Check if the terminal-capability database functions are available.  If not,
 854 dnl ncurses has a much-reduced version.
 855 AC_DEFUN([CF_CGETENT],[
 856 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
 857 AC_TRY_LINK([
 858 #include <stdlib.h>],[
 859         char temp[128];
 860         char *buf = temp;
 861         char *db_array = temp;
 862         cgetent(&buf, &db_array, "vt100");
 863         cgetcap(buf, "tc", '=');
 864         cgetmatch(buf, "tc");
 865         ],
 866         [cf_cv_cgetent=yes],
 867         [cf_cv_cgetent=no])
 868 ])
 869
 870 if test "$cf_cv_cgetent" = yes
 871 then
 872         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
 873 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
 874 AC_TRY_LINK([
 875 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
 876 #include <stdlib.h>],[
 877         char temp[128];
 878         char *buf = temp;
 879 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
 880         const char *db_array = temp;
 881         cgetent(&buf, &db_array, "vt100");
 882 #endif
 883         cgetcap(buf, "tc", '=');
 884         cgetmatch(buf, "tc");
 885         ],
 886         [cf_cv_cgetent_const=yes],
 887         [cf_cv_cgetent_const=no])
 888 ])
 889         if test "$cf_cv_cgetent_const" = yes
 890         then
 891                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
 892         fi
 893 fi
 894 ])dnl
 895 dnl ---------------------------------------------------------------------------
 896 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
 897 dnl --------------
 898 dnl Check if we're accidentally using a cache from a different machine.
 899 dnl Derive the system name, as a check for reusing the autoconf cache.
 900 dnl
 901 dnl If we've packaged config.guess and config.sub, run that (since it does a
 902 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 903 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 904 dnl which is useful in cross-compiles.
 905 dnl
 906 dnl Note: we would use $ac_config_sub, but that is one of the places where
 907 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 908 AC_DEFUN([CF_CHECK_CACHE],
 909 [
 910 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
 911         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 912         system_name="$host_os"
 913 else
 914         system_name="`(uname -s -r) 2>/dev/null`"
 915         if test -z "$system_name" ; then
 916                 system_name="`(hostname) 2>/dev/null`"
 917         fi
 918 fi
 919 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 920 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 921
 922 test -z "$system_name" && system_name="$cf_cv_system_name"
 923 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 924
 925 if test ".$system_name" != ".$cf_cv_system_name" ; then
 926         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 927         AC_MSG_ERROR("Please remove config.cache and try again.")
 928 fi
 929 ])dnl
 930 dnl ---------------------------------------------------------------------------
 931 dnl CF_CHECK_ENVIRON version: 3 updated: 2010/05/26 16:44:57
 932 dnl ----------------
 933 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
 934 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
 935 dnl
 936 dnl $1 = the name to check
 937 dnl $2 = the assumed type
 938 AC_DEFUN([CF_CHECK_ENVIRON],
 939 [
 940 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
 941     AC_TRY_COMPILE([
 942 #ifdef HAVE_STDLIB_H
 943 #include <stdlib.h>
 944 #endif
 945 #include <unistd.h> ],
 946     ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
 947     [cf_cv_dcl_$1=yes],
 948     [cf_cv_dcl_$1=no])
 949 ])
 950
 951 if test "$cf_cv_dcl_$1" = no ; then
 952     CF_UPPER(cf_result,decl_$1)
 953     AC_DEFINE_UNQUOTED($cf_result)
 954 fi
 955
 956 # It's possible (for near-UNIX clones) that the data doesn't exist
 957 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
 958 ])dnl
 959 dnl ---------------------------------------------------------------------------
 960 dnl CF_CHECK_ERRNO version: 12 updated: 2015/04/18 08:56:57
 961 dnl --------------
 962 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
 963 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
 964 dnl ourselves.
 965 dnl
 966 dnl $1 = the name to check
 967 dnl $2 = the assumed type
 968 AC_DEFUN([CF_CHECK_ERRNO],
 969 [
 970 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
 971         AC_TRY_COMPILE([
 972 #ifdef HAVE_STDLIB_H
 973 #include <stdlib.h>
 974 #endif
 975 #include <stdio.h>
 976 #include <sys/types.h>
 977 #include <errno.h> ],
 978         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
 979         [cf_cv_dcl_$1=yes],
 980         [cf_cv_dcl_$1=no])
 981 ])
 982
 983 if test "$cf_cv_dcl_$1" = no ; then
 984         CF_UPPER(cf_result,decl_$1)
 985         AC_DEFINE_UNQUOTED($cf_result)
 986 fi
 987
 988 # It's possible (for near-UNIX clones) that the data doesn't exist
 989 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
 990 ])dnl
 991 dnl ---------------------------------------------------------------------------
 992 dnl CF_CHECK_EXTERN_DATA version: 4 updated: 2015/04/18 08:56:57
 993 dnl --------------------
 994 dnl Check for existence of external data in the current set of libraries.  If
 995 dnl we can modify it, it's real enough.
 996 dnl $1 = the name to check
 997 dnl $2 = its type
 998 AC_DEFUN([CF_CHECK_EXTERN_DATA],
 999 [
1000 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
1001         AC_TRY_LINK([
1002 #undef $1
1003 extern $2 $1;
1004 ],
1005         [$1 = 2],
1006         [cf_cv_have_$1=yes],
1007         [cf_cv_have_$1=no])
1008 ])
1009
1010 if test "$cf_cv_have_$1" = yes ; then
1011         CF_UPPER(cf_result,have_$1)
1012         AC_DEFINE_UNQUOTED($cf_result)
1013 fi
1014
1015 ])dnl
1016 dnl ---------------------------------------------------------------------------
1017 dnl CF_CHECK_GETENV version: 1 updated: 2019/06/23 15:28:15
1018 dnl ---------------
1019 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1020 dnl discard the previous pointer when returning a new one.
1021 AC_DEFUN([CF_CHECK_GETENV],
1022 [
1023 AC_REQUIRE([CF_CHECK_ENVIRON])
1024 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1025 AC_CHECK_FUNCS( putenv setenv strdup )
1026 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1027 AC_TRY_RUN([
1028 #include <stdlib.h>
1029 #include <unistd.h>
1030 #include <stdio.h>
1031 #include <string.h>
1032 #include <sys/types.h>
1033
1034 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1035 extern char **environ;  /* POSIX, but some systems are not... */
1036 #endif
1037
1038 #if defined(HAVE_STRDUP)
1039 #define str_alloc(s) strdup(s)
1040 #else
1041 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1042 #endif
1043
1044 static void set_value(const char *name, const char *value)
1045 {
1046 #if defined(HAVE_SETENV)
1047         setenv(name, value, 1);
1048 #elif defined(HAVE_PUTENV)
1049         char buffer[1024];
1050         sprintf(buffer, "%s=%s", name, value);
1051         putenv(str_alloc(buffer));
1052 #else
1053 #error neither putenv/setenv found
1054 #endif
1055 }
1056 int main(void)
1057 {
1058         int pass;
1059         size_t numenv, limit, j;
1060         char **mynames;
1061         char **myvalues;
1062         char **mypointer;
1063         char *equals;
1064         for (numenv = 0; environ[numenv]; ++numenv) ;
1065         limit = numenv + 10;
1066         mynames = (char **) calloc(limit + 1, sizeof(char *));
1067         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1068         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1069 #if defined(HAVE_ENVIRON)
1070         for (j = 0; environ[j]; ++j) {
1071                 mynames[j] = str_alloc(environ[j]);
1072                 equals = strchr(mynames[j], '=');
1073                 if (equals != 0) {
1074                         *equals++ = '\0';
1075                         myvalues[j] = str_alloc(equals);
1076                 } else {
1077                         myvalues[j] = str_alloc("");
1078                 }
1079         }
1080 #endif
1081         for (j = numenv; j < limit; ++j) {
1082                 char name[80];
1083                 char value[80];
1084                 size_t found;
1085                 size_t k = 0;
1086                 do {
1087                         size_t jk;
1088                         found = 0;
1089                         sprintf(name, "TERM%lu", (unsigned long) k);
1090                         for (jk = 0; jk < j; ++jk) {
1091                                 if (!strcmp(name, mynames[jk])) {
1092                                         found = 1;
1093                                         ++k;
1094                                         break;
1095                                 }
1096                         }
1097                 } while (found);
1098                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1099                 set_value(name, value);
1100                 mynames[j] = str_alloc(name);
1101                 myvalues[j] = str_alloc(value);
1102         }
1103         for (pass = 0; pass < 3; ++pass) {
1104                 for (j = 0; j < limit; ++j) {
1105                         char *value = getenv(mynames[j]);
1106                         if (pass) {
1107                                 if (value == 0) {
1108                                         fprintf(stderr, "getenv returned null for %s\n", mynames[j]);
1109                                         ${cf_cv_main_return:-return}(1);
1110                                 } else if (value != mypointer[j]) {
1111                                         fprintf(stderr, "getenv returned different pointer for %s\n", mynames[j]);
1112                                         ${cf_cv_main_return:-return}(1);
1113                                 } else if (strcmp(value, myvalues[j])) {
1114                                         fprintf(stderr, "getenv returned different value for %s\n", mynames[j]);
1115                                         ${cf_cv_main_return:-return}(1);
1116                                 }
1117                         } else {
1118                                 size_t k;
1119                                 mypointer[j] = value;
1120                                 for (k = 0; k < j; ++k) {
1121                                         if (mypointer[j] == mypointer[k]) {
1122                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\n", mynames[j], mynames[k]);
1123                                                 ${cf_cv_main_return:-return}(1);
1124                                         }
1125                                 }
1126                         }
1127                 }
1128         }
1129         ${cf_cv_main_return:-return}(0);
1130 }
1131 ],
1132 [cf_cv_consistent_getenv=yes],
1133 [cf_cv_consistent_getenv=no],
1134 [cf_cv_consistent_getenv=unknown])
1135 ])
1136
1137 if test "x$cf_cv_consistent_getenv" = xno
1138 then
1139         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1140 fi
1141 ])dnl
1142 dnl ---------------------------------------------------------------------------
1143 dnl CF_CHECK_GNAT_VERSION version: 2 updated: 2019/12/31 08:53:54
1144 dnl ---------------------
1145 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1146 [
1147 AC_REQUIRE([CF_GNAT_VERSION])
1148 case $cf_cv_gnat_version in
1149 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
1150         cf_cv_prog_gnat_correct=yes
1151         ;;
1152 (*)
1153         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1154         cf_cv_prog_gnat_correct=no
1155         ;;
1156 esac
1157 ])
1158 dnl ---------------------------------------------------------------------------
1159 dnl CF_CHECK_GPM_WGETCH version: 3 updated: 2017/01/21 11:06:25
1160 dnl -------------------
1161 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1162 dnl is not "weak" - warn about this because it can create problems linking
1163 dnl applications with ncurses.
1164 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1165 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1166
1167 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1168 cf_cv_check_gpm_wgetch=unknown
1169 if test "$cross_compiling" != yes ; then
1170
1171 cat >conftest.$ac_ext <<CF_EOF
1172 #include <gpm.h>
1173 int main(void)
1174 {
1175         Gpm_Wgetch();
1176         ${cf_cv_main_return:-return}(0);
1177 }
1178 CF_EOF
1179
1180         cf_save_LIBS="$LIBS"
1181         # This only works if we can look at the symbol table.  If a shared
1182         # library is stripped for install, we cannot use that.  So we're forced
1183         # to rely on the static library, noting that some packagers may not
1184         # include it.
1185         LIBS="-static -lgpm -dynamic $LIBS"
1186         if AC_TRY_EVAL(ac_compile) ; then
1187                 if AC_TRY_EVAL(ac_link) ; then
1188                         cf_cv_check_gpm_wgetch=`nm conftest$ac_exeext | egrep '\<wgetch\>' | egrep '\<[[vVwW]]\>'`
1189                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1190                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1191                 fi
1192         fi
1193         rm -rf conftest*
1194         LIBS="$cf_save_LIBS"
1195 fi
1196 ])
1197
1198 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1199         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1200 fi
1201 ])])dnl
1202 dnl ---------------------------------------------------------------------------
1203 dnl CF_CHECK_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
1204 dnl ------------------------
1205 dnl Show the version of libtool
1206 dnl
1207 dnl Save the version in a cache variable - this is not entirely a good thing,
1208 dnl but the version string from libtool is very ugly, and for bug reports it
1209 dnl might be useful to have the original string.
1210 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1211 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1212 then
1213         AC_MSG_CHECKING(version of $LIBTOOL)
1214         CF_LIBTOOL_VERSION
1215         AC_MSG_RESULT($cf_cv_libtool_version)
1216         if test -z "$cf_cv_libtool_version" ; then
1217                 AC_MSG_ERROR(This is not GNU libtool)
1218         fi
1219 else
1220         AC_MSG_ERROR(GNU libtool has not been found)
1221 fi
1222 ])dnl
1223 dnl ---------------------------------------------------------------------------
1224 dnl CF_CHECK_WCHAR_H version: 2 updated: 2017/01/21 11:06:25
1225 dnl ----------------
1226 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1227 AC_DEFUN([CF_CHECK_WCHAR_H],[
1228 AC_CHECK_HEADERS( \
1229 wchar.h \
1230 wctype.h \
1231 )
1232 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1233 AC_TRY_COMPILE(
1234 [
1235 #include <stdlib.h>
1236 #ifdef HAVE_WCHAR_H
1237 #include <wchar.h>
1238 #endif
1239 #ifdef HAVE_WCTYPE_H
1240 #include <wctype.h>
1241 #endif
1242 ],[
1243         wint_t foo = 0;
1244         int bar = iswpunct(foo)],
1245         [cf_cv_wchar_h_okay=yes],
1246         [cf_cv_wchar_h_okay=no])])
1247
1248 if test $cf_cv_wchar_h_okay = no
1249 then
1250         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1251 fi
1252 ])dnl
1253 dnl ---------------------------------------------------------------------------
1254 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 1 updated: 2015/12/19 17:47:56
1255 dnl -------------------------
1256 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1257 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1258 dnl
1259 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1260 dnl all of those were combined into a page of useful graphics characters.
1261 dnl
1262 dnl So far, so good.
1263 dnl
1264 dnl However, while they are useful, there are other considerations.  CJK
1265 dnl is (because of poor device resolution) often rendered as double-width
1266 dnl characters.  So... for these generally-useful characters, what should
1267 dnl be the width (to make them consistent with adjacent characters)?
1268 dnl
1269 dnl The obvious choice would have been to make this locale-dependent, and use
1270 dnl wcwidth() to tell applications what the actual width is.  That was too
1271 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1272 dnl See for example
1273 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1274 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1275 dnl
1276 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1277 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1278 dnl instance, it lists half (44/96) of the Latin-1 characters as
1279 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1280 dnl
1281 dnl What this means for the implementor is that on some systems wcwidth() can
1282 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1283 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1284 dnl characters).  These do not necessarily match the behavior of the terminal
1285 dnl emulator.  xterm, for instance, does an optional startup check to find if
1286 dnl this problem (or similar) exists with the system's locale tables, rejecting
1287 dnl them if they are too unreliable.
1288 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1289 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1290 cat >conftest.in <<CF_EOF
1291 -       VT100 symbols
1292 0x250c  upper left corner
1293 0x2514  lower left corner
1294 0x2510  upper right corner
1295 0x2518  lower right corner
1296 0x251c  tee pointing left
1297 0x2524  tee pointing right
1298 0x2534  tee pointing up
1299 0x252c  tee pointing down
1300 0x2500  horizontal line
1301 0x2502  vertical line
1302 0x253c  large plus or crossover
1303 0x23ba  scan line 1
1304 0x23bd  scan line 9
1305 0x25c6  diamond
1306 0x2592  checker board (stipple)
1307 0x00b0  degree symbol
1308 0x00b1  plus/minus
1309 0x00b7  bullet
1310 -       Teletype 5410v1 symbols
1311 0x2190  arrow pointing left
1312 0x2192  arrow pointing right
1313 0x2193  arrow pointing down
1314 0x2191  arrow pointing up
1315 0x2592  board of squares
1316 0x2603  lantern symbol
1317 0x25ae  solid square block
1318 -       these defaults were invented for ncurses
1319 0x23bb  scan line 3
1320 0x23bc  scan line 7
1321 0x2264  less-than-or-equal-to
1322 0x2265  greater-than-or-equal-to
1323 0x03c0  greek pi
1324 0x2260  not-equal
1325 0x00a3  pound-sterling symbol
1326 -       thick-line-drawing
1327 0x250f  upper left corner
1328 0x2517  lower left corner
1329 0x2513  upper right corner
1330 0x251b  lower right corner
1331 0x2523  tee pointing left
1332 0x252b  tee pointing right
1333 0x253b  tee pointing up
1334 0x2533  tee pointing down
1335 0x2501  horizontal line
1336 0x2503  vertical line
1337 0x254b  large plus or crossover
1338 -       double-line-drawing
1339 0x2554  upper left corner
1340 0x255a  lower left corner
1341 0x2557  upper right corner
1342 0x255d  lower right corner
1343 0x2563  tee pointing left
1344 0x2560  tee pointing right
1345 0x2569  tee pointing up
1346 0x2566  tee pointing down
1347 0x2550  horizontal line
1348 0x2551  vertical line
1349 0x256c  large plus or crossover
1350 CF_EOF
1351 AC_TRY_RUN([
1352 #include <locale.h>
1353 #include <stdio.h>
1354 #include <wchar.h>
1355
1356 #define MY_LEN 80
1357
1358 int
1359 main(void)
1360 {
1361         FILE *fp;
1362         int value;
1363         char buffer[MY_LEN + 1];
1364         char notes[MY_LEN + 1];
1365         int totals = 0;
1366         int passed = 0;
1367
1368         if (setlocale(LC_ALL, "en_US.UTF8") ||
1369                 setlocale(LC_ALL, "en_US.UTF-8") ||
1370                 setlocale(LC_ALL, "en_US.utf8") ||
1371                 setlocale(LC_ALL, "en_US.utf-8")) {
1372                 if ((fp = fopen("conftest.in", "r")) != 0) {
1373                         while (fgets(buffer, MY_LEN, fp) != 0) {
1374                                 if (*buffer == '-') {
1375                                         fprintf(stderr, "\t%s", buffer);
1376                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1377                                         ++totals;
1378                                         if (wcwidth(value) == 1)
1379                                                 ++passed;
1380                                         fprintf(stderr, "%d\t%s", wcwidth(value), buffer);
1381                                 } else {
1382                                         fprintf(stderr, "?\t%s", buffer);
1383                                 }
1384                         }
1385                 }
1386         }
1387         fprintf(stderr, "%d/%d passed wcwidth/graphics check\n", passed, totals);
1388         return (totals == passed) ? 0 : 1;
1389 }
1390 ],
1391 [cf_cv_wcwidth_graphics=yes],
1392 [cf_cv_wcwidth_graphics=no],
1393 [cf_cv_wcwidth_graphics=unknown])
1394 ])
1395 ])dnl
1396 dnl ---------------------------------------------------------------------------
1397 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
1398 dnl -----------------
1399 dnl Check if the given compiler is really clang.  clang's C driver defines
1400 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1401 dnl not ignore some gcc options.
1402 dnl
1403 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1404 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1405 dnl the wrappers for gcc and g++ warnings.
1406 dnl
1407 dnl $1 = GCC (default) or GXX
1408 dnl $2 = CLANG_COMPILER (default)
1409 dnl $3 = CFLAGS (default) or CXXFLAGS
1410 AC_DEFUN([CF_CLANG_COMPILER],[
1411 ifelse([$2],,CLANG_COMPILER,[$2])=no
1412
1413 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1414         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1415         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1416         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
1417         AC_TRY_COMPILE([],[
1418 #ifdef __clang__
1419 #else
1420 make an error
1421 #endif
1422 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1423 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
1424 ],[])
1425         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1426         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1427 fi
1428 ])
1429 dnl ---------------------------------------------------------------------------
1430 dnl CF_CONST_X_STRING version: 3 updated: 2020/01/11 18:39:22
1431 dnl -----------------
1432 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1433 dnl character-strings.
1434 dnl
1435 dnl It is ambiguous because the specification accommodated the pre-ANSI
1436 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1437 dnl compiler other than by costly add-ons.  Because of this, the specification
1438 dnl did not take into account the use of const for telling the compiler that
1439 dnl string literals would be in readonly memory.
1440 dnl
1441 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1442 dnl let the compiler decide how to represent Xt's strings which were #define'd.
1443 dnl That does not solve the problem of using the block of Xt's strings which
1444 dnl are compiled into the library (and is less efficient than one might want).
1445 dnl
1446 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1447 dnl when compiling the library and compiling using the library, to tell the
1448 dnl compiler that String is const.
1449 AC_DEFUN([CF_CONST_X_STRING],
1450 [
1451 AC_REQUIRE([AC_PATH_XTRA])
1452
1453 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
1454
1455 AC_TRY_COMPILE(
1456 [
1457 #include <stdlib.h>
1458 #include <X11/Intrinsic.h>
1459 ],
1460 [String foo = malloc(1)],[
1461
1462 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1463         AC_TRY_COMPILE(
1464                 [
1465 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1466 #undef  XTSTRINGDEFINES /* X11R5 and later */
1467 #include <stdlib.h>
1468 #include <X11/Intrinsic.h>
1469                 ],[String foo = malloc(1); *foo = 0],[
1470                         cf_cv_const_x_string=no
1471                 ],[
1472                         cf_cv_const_x_string=yes
1473                 ])
1474 ])
1475
1476 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1477
1478 case $cf_cv_const_x_string in
1479 (no)
1480         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1481         ;;
1482 (*)
1483         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1484         ;;
1485 esac
1486
1487 ])
1488 ])dnl
1489 dnl ---------------------------------------------------------------------------
1490 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1491 dnl -----------------
1492 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1493 dnl is a late feature for the standard and is not in some recent compilers
1494 dnl (1999/9/11).
1495 AC_DEFUN([CF_CPP_PARAM_INIT],
1496 [
1497 if test -n "$CXX"; then
1498 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1499         AC_LANG_SAVE
1500         AC_LANG_CPLUSPLUS
1501         AC_TRY_RUN([
1502 class TEST {
1503 private:
1504         int value;
1505 public:
1506         TEST(int x = 1);
1507         ~TEST();
1508 };
1509
1510 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1511 {
1512         value = x;
1513 }
1514 int main(void) { }
1515 ],
1516         [cf_cv_cpp_param_init=yes],
1517         [cf_cv_cpp_param_init=no],
1518         [cf_cv_cpp_param_init=unknown])
1519         AC_LANG_RESTORE
1520 ])
1521 fi
1522 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1523 ])dnl
1524 dnl ---------------------------------------------------------------------------
1525 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1526 dnl ------------------
1527 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1528 dnl not be supported in g++ before 3.0
1529 AC_DEFUN([CF_CPP_STATIC_CAST],
1530 [
1531 if test -n "$CXX"; then
1532
1533 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1534         AC_LANG_SAVE
1535         AC_LANG_CPLUSPLUS
1536
1537         AC_TRY_COMPILE([
1538 class NCursesPanel
1539 {
1540 public:
1541   NCursesPanel(int nlines,
1542                int ncols,
1543                int begin_y = 0,
1544                int begin_x = 0)
1545   {
1546   }
1547   NCursesPanel();
1548   ~NCursesPanel();
1549 };
1550
1551 template<class T> class NCursesUserPanel : public NCursesPanel
1552 {
1553 public:
1554   NCursesUserPanel (int nlines,
1555                     int ncols,
1556                     int begin_y = 0,
1557                     int begin_x = 0,
1558                     const T* p_UserData = static_cast<T*>(0))
1559     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1560   {
1561   };
1562   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1563   {
1564   };
1565
1566   virtual ~NCursesUserPanel() {};
1567 };
1568 ],[
1569         const char* p_UserData = static_cast<char*>(0)],
1570         [cf_cv_cpp_static_cast=yes],
1571         [cf_cv_cpp_static_cast=no])
1572
1573         AC_LANG_RESTORE
1574 ])
1575
1576 fi
1577
1578 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1579 ])dnl
1580 dnl ---------------------------------------------------------------------------
1581 dnl CF_CXX_AR_FLAGS version: 2 updated: 2015/04/17 21:13:04
1582 dnl ---------------
1583 dnl Setup special archiver flags for given compilers.
1584 AC_DEFUN([CF_CXX_AR_FLAGS],[
1585         CXX_AR='$(AR)'
1586         CXX_ARFLAGS='$(ARFLAGS)'
1587         case $cf_cv_system_name in
1588         (irix*)
1589             if test "$GXX" != yes ; then
1590                 CXX_AR='$(CXX)'
1591                 CXX_ARFLAGS='-ar -o'
1592             fi
1593             ;;
1594         (sco3.2v5*)
1595             CXXLDFLAGS="-u main"
1596             ;;
1597         (solaris2*)
1598             if test "$GXX" != yes ; then
1599                 CXX_AR='$(CXX)'
1600                 CXX_ARFLAGS='-xar -o'
1601             fi
1602             ;;
1603         esac
1604         AC_SUBST(CXXLDFLAGS)
1605         AC_SUBST(CXX_AR)
1606         AC_SUBST(CXX_ARFLAGS)
1607 ])dnl
1608 dnl ---------------------------------------------------------------------------
1609 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1610 dnl -------------------------
1611 dnl For c++, check if iostream uses "std::" namespace.
1612 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1613 AC_CHECK_HEADERS(iostream)
1614 if test x"$ac_cv_header_iostream" = xyes ; then
1615         AC_MSG_CHECKING(if iostream uses std-namespace)
1616         AC_TRY_COMPILE([
1617 #include <iostream>
1618 using std::endl;
1619 using std::cerr;],[
1620 cerr << "testing" << endl;
1621 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1622         AC_MSG_RESULT($cf_iostream_namespace)
1623         if test "$cf_iostream_namespace" = yes ; then
1624                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1625         fi
1626 fi
1627 ])dnl
1628 dnl ---------------------------------------------------------------------------
1629 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1630 dnl -----------
1631 dnl Check if the C compiler supports "inline".
1632 dnl $1 is the name of a shell variable to set if inline is supported
1633 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1634 AC_DEFUN([CF_C_INLINE],[
1635 AC_REQUIRE([CF_GCC_VERSION])
1636 AC_C_INLINE
1637 $1=
1638 if test "$ac_cv_c_inline" != no ; then
1639         $1=inline
1640         if test "$INTEL_COMPILER" = yes
1641         then
1642                 :
1643         elif test "$CLANG_COMPILER" = yes
1644         then
1645                 :
1646         elif test "$GCC" = yes
1647         then
1648                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1649                 cf_save_CFLAGS=$CFLAGS
1650                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1651                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1652                 [${cf_cv_main_return:-return} foo()],
1653                 [cf_cv_gcc_inline=yes],
1654                 [cf_cv_gcc_inline=no])
1655                 CFLAGS=$cf_save_CFLAGS
1656                 ])
1657                 if test "$cf_cv_gcc_inline" = yes ; then
1658                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1659                 fi
1660         fi
1661 fi
1662 AC_SUBST($1)
1663 ])dnl
1664 dnl ---------------------------------------------------------------------------
1665 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
1666 dnl ----------
1667 dnl "dirname" is not portable, so we fake it with a shell script.
1668 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
1669 dnl ---------------------------------------------------------------------------
1670 dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
1671 dnl ---------------
1672 AC_DEFUN([CF_DIRS_TO_MAKE],
1673 [
1674 DIRS_TO_MAKE="lib"
1675 for cf_item in $cf_list_models
1676 do
1677         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1678         for cf_item2 in $DIRS_TO_MAKE
1679         do
1680                 test $cf_item2 = $cf_subdir && break
1681         done
1682         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1683 done
1684 for cf_dir in $DIRS_TO_MAKE
1685 do
1686         test ! -d $cf_dir && mkdir $cf_dir
1687 done
1688 AC_SUBST(DIRS_TO_MAKE)
1689 ])dnl
1690 dnl ---------------------------------------------------------------------------
1691 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1692 dnl ---------------
1693 dnl You can always use "make -n" to see the actual options, but it's hard to
1694 dnl pick out/analyze warning messages when the compile-line is long.
1695 dnl
1696 dnl Sets:
1697 dnl     ECHO_LT - symbol to control if libtool is verbose
1698 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1699 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1700 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1701 dnl     ECHO_CC - symbol to put before any "cc" line
1702 dnl
1703 AC_DEFUN([CF_DISABLE_ECHO],[
1704 AC_MSG_CHECKING(if you want to see long compiling messages)
1705 CF_ARG_DISABLE(echo,
1706         [  --disable-echo          do not display "compiling" commands],
1707         [
1708         ECHO_LT='--silent'
1709         ECHO_LD='@echo linking [$]@;'
1710         RULE_CC='@echo compiling [$]<'
1711         SHOW_CC='@echo compiling [$]@'
1712         ECHO_CC='@'
1713 ],[
1714         ECHO_LT=''
1715         ECHO_LD=''
1716         RULE_CC=''
1717         SHOW_CC=''
1718         ECHO_CC=''
1719 ])
1720 AC_MSG_RESULT($enableval)
1721 AC_SUBST(ECHO_LT)
1722 AC_SUBST(ECHO_LD)
1723 AC_SUBST(RULE_CC)
1724 AC_SUBST(SHOW_CC)
1725 AC_SUBST(ECHO_CC)
1726 ])dnl
1727 dnl ---------------------------------------------------------------------------
1728 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1729 dnl ------------------------
1730 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1731 AC_MSG_CHECKING(if we want to use GNAT projects)
1732 CF_ARG_DISABLE(gnat-projects,
1733         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1734         [enable_gnat_projects=no],
1735         [enable_gnat_projects=yes])
1736 AC_MSG_RESULT($enable_gnat_projects)
1737 ])dnl
1738 dnl ---------------------------------------------------------------------------
1739 dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
1740 dnl ----------------
1741 dnl Combine no-leak checks with the libraries or tools that are used for the
1742 dnl checks.
1743 AC_DEFUN([CF_DISABLE_LEAKS],[
1744
1745 AC_REQUIRE([CF_WITH_DMALLOC])
1746 AC_REQUIRE([CF_WITH_DBMALLOC])
1747 AC_REQUIRE([CF_WITH_VALGRIND])
1748
1749 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1750 AC_ARG_ENABLE(leaks,
1751         [  --disable-leaks         test: free permanent memory, analyze leaks],
1752         [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
1753         : ${with_no_leaks:=no})
1754 AC_MSG_RESULT($with_no_leaks)
1755
1756 if test "$with_no_leaks" = yes ; then
1757         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1758         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1759 fi
1760 ])dnl
1761 dnl ---------------------------------------------------------------------------
1762 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1763 dnl --------------------------
1764 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1765 dnl the older "-version-info" feature.  The newer feature allows us to use
1766 dnl version numbering on shared libraries which make them compatible with
1767 dnl various systems.
1768 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1769 [
1770 AC_MSG_CHECKING(if libtool -version-number should be used)
1771 CF_ARG_DISABLE(libtool-version,
1772         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
1773         [cf_libtool_version=no],
1774         [cf_libtool_version=yes])
1775 AC_MSG_RESULT($cf_libtool_version)
1776
1777 if test "$cf_libtool_version" = yes ; then
1778         LIBTOOL_VERSION="-version-number"
1779 else
1780         LIBTOOL_VERSION="-version-info"
1781         case "x$VERSION" in
1782         (x)
1783                 AC_MSG_WARN(VERSION was not set)
1784                 ;;
1785         (x*.*.*)
1786                 ABI_VERSION="$VERSION"
1787                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1788                 ;;
1789         (x*:*:*)
1790                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
1791                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1792                 ;;
1793         (*)
1794                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
1795                 ;;
1796         esac
1797 fi
1798
1799 AC_SUBST(ABI_VERSION)
1800 AC_SUBST(LIBTOOL_VERSION)
1801 ])dnl
1802 dnl ---------------------------------------------------------------------------
1803 dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
1804 dnl ---------------------
1805 dnl The rpath-hack makes it simpler to build programs, particularly with the
1806 dnl *BSD ports which may have essential libraries in unusual places.  But it
1807 dnl can interfere with building an executable for the base system.  Use this
1808 dnl option in that case.
1809 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1810 [
1811 AC_MSG_CHECKING(if rpath-hack should be disabled)
1812 CF_ARG_DISABLE(rpath-hack,
1813         [  --disable-rpath-hack    don't add rpath options for additional libraries],
1814         [cf_disable_rpath_hack=yes],
1815         [cf_disable_rpath_hack=no])
1816 AC_MSG_RESULT($cf_disable_rpath_hack)
1817 if test "$cf_disable_rpath_hack" = no ; then
1818         CF_RPATH_HACK
1819 fi
1820 ])
1821 dnl ---------------------------------------------------------------------------
1822 dnl CF_ENABLE_BROKEN_LINKER version: 1 updated: 2020/02/08 15:59:30
1823 dnl -----------------------
1824 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
1825 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1826 dnl an unconditional feature.
1827 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1828
1829 AC_MSG_CHECKING(if you want broken-linker support code)
1830 AC_ARG_ENABLE(broken_linker,
1831         [  --enable-broken_linker  compile with broken-linker support code],
1832         [with_broken_linker=$enableval],
1833         [with_broken_linker=no])
1834 AC_MSG_RESULT($with_broken_linker)
1835
1836 : ${BROKEN_LINKER:=0}
1837 if test "x$with_broken_linker" = xyes ; then
1838         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1839         BROKEN_LINKER=1
1840 fi
1841 AC_SUBST(BROKEN_LINKER)
1842 ])dnl
1843 dnl ---------------------------------------------------------------------------
1844 dnl CF_ENABLE_PC_FILES version: 13 updated: 2015/11/01 05:27:39
1845 dnl ------------------
1846 dnl This is the "--enable-pc-files" option, which is available if there is a
1847 dnl pkg-config configuration on the local machine.
1848 AC_DEFUN([CF_ENABLE_PC_FILES],[
1849 AC_REQUIRE([CF_PKG_CONFIG])
1850 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
1851
1852 if test "x$PKG_CONFIG" != xnone
1853 then
1854         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
1855 else
1856         AC_MSG_CHECKING(if we should install .pc files)
1857 fi
1858
1859 AC_ARG_ENABLE(pc-files,
1860         [  --enable-pc-files       generate and install .pc files for pkg-config],
1861         [enable_pc_files=$enableval],
1862         [enable_pc_files=no])
1863 AC_MSG_RESULT($enable_pc_files)
1864
1865 if test "x$enable_pc_files" != xno
1866 then
1867         MAKE_PC_FILES=
1868         case "x$PKG_CONFIG_LIBDIR" in
1869         (xno|xyes)
1870                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
1871                 ;;
1872         (*)
1873                 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
1874                 ;;
1875         esac
1876 else
1877         MAKE_PC_FILES="#"
1878 fi
1879 AC_SUBST(MAKE_PC_FILES)
1880 ])dnl
1881 dnl ---------------------------------------------------------------------------
1882 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
1883 dnl ---------------
1884 dnl Check if the rpath option should be used, setting cache variable
1885 dnl cf_cv_enable_rpath if so.
1886 AC_DEFUN([CF_ENABLE_RPATH],
1887 [
1888 AC_MSG_CHECKING(if rpath option should be used)
1889 AC_ARG_ENABLE(rpath,
1890 [  --enable-rpath          use rpath option when generating shared libraries],
1891 [cf_cv_enable_rpath=$enableval],
1892 [cf_cv_enable_rpath=no])
1893 AC_MSG_RESULT($cf_cv_enable_rpath)
1894 ])dnl
1895 dnl ---------------------------------------------------------------------------
1896 dnl CF_ENABLE_STRING_HACKS version: 5 updated: 2016/10/08 17:34:11
1897 dnl ----------------------
1898 dnl On a few platforms, the compiler and/or loader nags with untruthful
1899 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1900 dnl and implying that most uses of the recommended alternatives are correct.
1901 dnl
1902 dnl Factually speaking, no one has actually counted the number of uses of these
1903 dnl functions versus the total of incorrect uses.  Samples of a few thousand
1904 dnl instances are meaningless compared to the hundreds of millions of lines of
1905 dnl existing C code.
1906 dnl
1907 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1908 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
1909 dnl standard - but evolved through phases, and older implementations are likely
1910 dnl to yield surprising results, as documented in manpages on various systems.
1911 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1912 [
1913 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1914 AC_ARG_ENABLE(string-hacks,
1915         [  --enable-string-hacks   work around bogus compiler/loader warnings],
1916         [with_string_hacks=$enableval],
1917         [with_string_hacks=no])
1918 AC_MSG_RESULT($with_string_hacks)
1919
1920 if test "x$with_string_hacks" = "xyes"; then
1921         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1922         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1923         AC_CHECK_FUNC(strlcat,[
1924                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1925                 ],[
1926                 AC_CHECK_LIB(bsd,strlcat,[
1927                         CF_ADD_LIB(bsd)
1928                         AC_CHECK_HEADERS(bsd/string.h)
1929                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1930                         ])
1931                 ])
1932         AC_CHECK_FUNCS( strlcpy snprintf )
1933 fi
1934 ])dnl
1935 dnl ---------------------------------------------------------------------------
1936 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
1937 dnl --------
1938 dnl Check if 'errno' is declared in <errno.h>
1939 AC_DEFUN([CF_ERRNO],
1940 [
1941 CF_CHECK_ERRNO(errno)
1942 ])dnl
1943 dnl ---------------------------------------------------------------------------
1944 dnl CF_ETIP_DEFINES version: 5 updated: 2012/02/18 17:51:07
1945 dnl ---------------
1946 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
1947 dnl math.h and builtin.h, only for ncurses
1948 AC_DEFUN([CF_ETIP_DEFINES],
1949 [
1950 AC_MSG_CHECKING(for special defines needed for etip.h)
1951 cf_save_CXXFLAGS="$CXXFLAGS"
1952 cf_result="none"
1953
1954 # etip.h includes ncurses.h which includes ncurses_dll.h
1955 # But ncurses_dll.h is generated - fix here.
1956 test -d include || mkdir include
1957 test -f include/ncurses_dll.h || sed -e 's/@NCURSES_WRAP_PREFIX@/'$NCURSES_WRAP_PREFIX'/g' ${srcdir}/include/ncurses_dll.h.in >include/ncurses_dll.h
1958
1959 for cf_math in "" MATH_H
1960 do
1961 for cf_excp in "" MATH_EXCEPTION
1962 do
1963         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
1964         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
1965         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
1966 AC_TRY_COMPILE([
1967 #include <etip.h.in>
1968 ],[],[
1969         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
1970         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
1971         cf_result="$cf_math $cf_excp"
1972         break 2
1973 ],[])
1974 done
1975 done
1976 AC_MSG_RESULT($cf_result)
1977 CXXFLAGS="$cf_save_CXXFLAGS"
1978 ])
1979 dnl ---------------------------------------------------------------------------
1980 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
1981 dnl ---------------
1982 dnl Find a library (specifically the linkage used in the code fragment),
1983 dnl searching for it if it is not already in the library path.
1984 dnl See also CF_ADD_SEARCHPATH.
1985 dnl
1986 dnl Parameters (4-on are optional):
1987 dnl     $1 = headers for library entrypoint
1988 dnl     $2 = code fragment for library entrypoint
1989 dnl     $3 = the library name without the "-l" option or ".so" suffix.
1990 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
1991 dnl     $5 = action to perform if not successful
1992 dnl     $6 = module name, if not the same as the library name
1993 dnl     $7 = extra libraries
1994 dnl
1995 dnl Sets these variables:
1996 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1997 dnl     $cf_cv_header_path_$3 - include-directory if needed
1998 dnl     $cf_cv_library_path_$3 - library-directory if needed
1999 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
2000 AC_DEFUN([CF_FIND_LINKAGE],[
2001
2002 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
2003 # will be set on completion of the AC_TRY_LINK below.
2004 cf_cv_header_path_$3=
2005 cf_cv_library_path_$3=
2006
2007 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
2008
2009 cf_save_LIBS="$LIBS"
2010
2011 AC_TRY_LINK([$1],[$2],[
2012         cf_cv_find_linkage_$3=yes
2013         cf_cv_header_path_$3=/usr/include
2014         cf_cv_library_path_$3=/usr/lib
2015 ],[
2016
2017 LIBS="-l$3 $7 $cf_save_LIBS"
2018
2019 AC_TRY_LINK([$1],[$2],[
2020         cf_cv_find_linkage_$3=yes
2021         cf_cv_header_path_$3=/usr/include
2022         cf_cv_library_path_$3=/usr/lib
2023         cf_cv_library_file_$3="-l$3"
2024 ],[
2025         cf_cv_find_linkage_$3=no
2026         LIBS="$cf_save_LIBS"
2027
2028         CF_VERBOSE(find linkage for $3 library)
2029         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
2030
2031         cf_save_CPPFLAGS="$CPPFLAGS"
2032         cf_test_CPPFLAGS="$CPPFLAGS"
2033
2034         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2035         for cf_cv_header_path_$3 in $cf_search
2036         do
2037                 if test -d $cf_cv_header_path_$3 ; then
2038                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2039                         CPPFLAGS="$cf_save_CPPFLAGS"
2040                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2041                         AC_TRY_COMPILE([$1],[$2],[
2042                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2043                                 cf_cv_find_linkage_$3=maybe
2044                                 cf_test_CPPFLAGS="$CPPFLAGS"
2045                                 break],[
2046                                 CPPFLAGS="$cf_save_CPPFLAGS"
2047                                 ])
2048                 fi
2049         done
2050
2051         if test "$cf_cv_find_linkage_$3" = maybe ; then
2052
2053                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2054
2055                 cf_save_LIBS="$LIBS"
2056                 cf_save_LDFLAGS="$LDFLAGS"
2057
2058                 ifelse([$6],,,[
2059                 CPPFLAGS="$cf_test_CPPFLAGS"
2060                 LIBS="-l$3 $7 $cf_save_LIBS"
2061                 AC_TRY_LINK([$1],[$2],[
2062                         CF_VERBOSE(... found $3 library in system)
2063                         cf_cv_find_linkage_$3=yes])
2064                         CPPFLAGS="$cf_save_CPPFLAGS"
2065                         LIBS="$cf_save_LIBS"
2066                         ])
2067
2068                 if test "$cf_cv_find_linkage_$3" != yes ; then
2069                         CF_LIBRARY_PATH(cf_search,$3)
2070                         for cf_cv_library_path_$3 in $cf_search
2071                         do
2072                                 if test -d $cf_cv_library_path_$3 ; then
2073                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2074                                         CPPFLAGS="$cf_test_CPPFLAGS"
2075                                         LIBS="-l$3 $7 $cf_save_LIBS"
2076                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2077                                         AC_TRY_LINK([$1],[$2],[
2078                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2079                                         cf_cv_find_linkage_$3=yes
2080                                         cf_cv_library_file_$3="-l$3"
2081                                         break],[
2082                                         CPPFLAGS="$cf_save_CPPFLAGS"
2083                                         LIBS="$cf_save_LIBS"
2084                                         LDFLAGS="$cf_save_LDFLAGS"
2085                                         ])
2086                                 fi
2087                         done
2088                         CPPFLAGS="$cf_save_CPPFLAGS"
2089                         LDFLAGS="$cf_save_LDFLAGS"
2090                 fi
2091
2092         else
2093                 cf_cv_find_linkage_$3=no
2094         fi
2095         ],$7)
2096 ])
2097
2098 LIBS="$cf_save_LIBS"
2099
2100 if test "$cf_cv_find_linkage_$3" = yes ; then
2101 ifelse([$4],,[
2102         CF_ADD_INCDIR($cf_cv_header_path_$3)
2103         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2104         CF_ADD_LIB($3)
2105 ],[$4])
2106 else
2107 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2108 fi
2109 ])dnl
2110 dnl ---------------------------------------------------------------------------
2111 dnl CF_FIND_SUB_INCDIR version: 2 updated: 2015/04/17 21:13:04
2112 dnl ------------------
2113 dnl Find an include-directory with the given leaf-name.  This is useful for
2114 dnl example with FreeBSD ports, which use this convention to distinguish
2115 dnl different versions of the same port.
2116 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2117         CF_SUBDIR_PATH(cf_search,$1,include)
2118         for cf_item in $cf_search
2119         do
2120                 case $cf_item in
2121                 (*/$1)
2122                         CF_ADD_INCDIR($cf_item)
2123                         ;;
2124                 esac
2125         done
2126 ])dnl
2127 dnl ---------------------------------------------------------------------------
2128 dnl CF_FIND_SUB_LIBDIR version: 2 updated: 2015/04/17 21:13:04
2129 dnl ------------------
2130 dnl Find a library-directory with the given leaf-name.  This is useful for
2131 dnl example with FreeBSD ports, which use this convention to distinguish
2132 dnl different versions of the same port.
2133 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2134         CF_SUBDIR_PATH(cf_search,$1,lib)
2135         for cf_item in $cf_search
2136         do
2137                 case $cf_item in
2138                 (*/$1)
2139                         CF_ADD_LIBDIR($cf_item)
2140                         ;;
2141                 esac
2142         done
2143 ])dnl
2144 dnl ---------------------------------------------------------------------------
2145 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2146 dnl -----------------
2147 dnl make ADAFLAGS consistent with CFLAGS
2148 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2149         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2150         case "$CFLAGS" in
2151         (*-g*)
2152                 CF_ADD_ADAFLAGS(-g)
2153                 ;;
2154         esac
2155         case "$CFLAGS" in
2156         (*-O*)
2157                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2158                 CF_ADD_ADAFLAGS($cf_O_flag)
2159                 ;;
2160         esac
2161         AC_MSG_RESULT($ADAFLAGS)
2162 ])dnl
2163 dnl ---------------------------------------------------------------------------
2164 dnl CF_FOPEN_BIN_R version: 2 updated: 2019/12/31 08:53:54
2165 dnl --------------
2166 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2167 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2168 dnl systems do not accept it.
2169 AC_DEFUN([CF_FOPEN_BIN_R],[
2170 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2171         AC_TRY_RUN([
2172 #include <stdio.h>
2173 int main(void) {
2174         FILE *fp = fopen("conftest.tmp", "wb");
2175         int rc = 0;
2176         if (fp != 0) {
2177                 int p, q;
2178                 for (p = 0; p < 256; ++p) {
2179                         fputc(p, fp);
2180                 }
2181                 fclose(fp);
2182                 fp = fopen("conftest.tmp", "rb");
2183                 if (fp != 0) {
2184                         for (p = 0; p < 256; ++p) {
2185                                 q = fgetc(fp);
2186                                 if (q != p) {
2187                                         rc = 1;
2188                                         break;
2189                                 }
2190                         }
2191                 } else {
2192                         rc = 1;
2193                 }
2194         } else {
2195                 rc = 1;
2196         }
2197         ${cf_cv_main_return:-return} (rc);
2198 }
2199 ],
2200                 [cf_cv_fopen_bin_r=yes],
2201                 [cf_cv_fopen_bin_r=no],
2202                 [cf_cv_fopen_bin_r=unknown])
2203 ])
2204 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R,1,[Define to 1 if fopen accepts explicit binary mode])
2205 ])dnl
2206 dnl ---------------------------------------------------------------------------
2207 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2208 dnl --------------
2209 dnl Forget that we saw the given tool.
2210 AC_DEFUN([CF_FORGET_TOOL],[
2211 unset ac_cv_prog_ac_ct_$1
2212 unset ac_ct_$1
2213 unset $1
2214 ])dnl
2215 dnl ---------------------------------------------------------------------------
2216 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2217 dnl -------------
2218 dnl Test for dlsym() and related functions, as well as libdl.
2219 dnl
2220 dnl Sets
2221 dnl     $cf_have_dlsym
2222 dnl     $cf_have_libdl
2223 AC_DEFUN([CF_FUNC_DLSYM],[
2224 cf_have_dlsym=no
2225 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2226
2227 cf_have_libdl=no
2228 AC_CHECK_LIB(dl,dlsym,[
2229         cf_have_dlsym=yes
2230         cf_have_libdl=yes])])
2231
2232 if test "$cf_have_dlsym" = yes ; then
2233         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2234
2235         AC_MSG_CHECKING(whether able to link to dl*() functions)
2236         AC_TRY_LINK([#include <dlfcn.h>],[
2237                 void *obj;
2238                 if ((obj = dlopen("filename", 0)) != 0) {
2239                         if (dlsym(obj, "symbolname") == 0) {
2240                         dlclose(obj);
2241                         }
2242                 }],[
2243                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2244                 AC_MSG_ERROR(Cannot link test program for libdl)])
2245         AC_MSG_RESULT(ok)
2246 else
2247         AC_MSG_ERROR(Cannot find dlsym function)
2248 fi
2249 ])
2250 dnl ---------------------------------------------------------------------------
2251 dnl CF_FUNC_MEMMOVE version: 9 updated: 2017/01/21 11:06:25
2252 dnl ---------------
2253 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2254 dnl is found, add our own version of memmove to the list of objects.
2255 AC_DEFUN([CF_FUNC_MEMMOVE],
2256 [
2257 AC_CHECK_FUNC(memmove,,[
2258 AC_CHECK_FUNC(bcopy,[
2259         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2260                 AC_TRY_RUN([
2261 int main(void) {
2262         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2263         char temp[40];
2264         bcopy(data, temp, sizeof(data));
2265         bcopy(temp+10, temp, 15);
2266         bcopy(temp+5, temp+15, 10);
2267         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2268 }
2269                 ],
2270                 [cf_cv_good_bcopy=yes],
2271                 [cf_cv_good_bcopy=no],
2272                 [cf_cv_good_bcopy=unknown])
2273                 ])
2274         ],[cf_cv_good_bcopy=no])
2275         if test "$cf_cv_good_bcopy" = yes ; then
2276                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2277         else
2278                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2279         fi
2280 ])])dnl
2281 dnl ---------------------------------------------------------------------------
2282 dnl CF_FUNC_NANOSLEEP version: 5 updated: 2017/01/21 11:06:25
2283 dnl -----------------
2284 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2285 dnl AIX 4.x, provide a non-working version.
2286 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2287 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2288 AC_TRY_RUN([
2289 #include <stdio.h>
2290 #include <errno.h>
2291 #include <time.h>
2292
2293 #ifdef HAVE_SYS_TIME_H
2294 #include <sys/time.h>
2295 #endif
2296
2297 int main(void) {
2298         struct timespec ts1, ts2;
2299         int code;
2300         ts1.tv_sec  = 0;
2301         ts1.tv_nsec = 750000000;
2302         ts2.tv_sec  = 0;
2303         ts2.tv_nsec = 0;
2304         errno = 0;
2305         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2306         ${cf_cv_main_return:-return}(code != 0);
2307 }
2308 ],
2309         [cf_cv_func_nanosleep=yes],
2310         [cf_cv_func_nanosleep=no],
2311         [cf_cv_func_nanosleep=unknown])])
2312
2313 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2314 ])
2315 dnl ---------------------------------------------------------------------------
2316 dnl CF_FUNC_OPENPTY version: 5 updated: 2015/09/12 14:46:50
2317 dnl ---------------
2318 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2319 dnl "util" library as well.
2320 AC_DEFUN([CF_FUNC_OPENPTY],
2321 [
2322 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2323 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2324         cf_save_LIBS="$LIBS"
2325         test $cf_cv_lib_util = yes && { CF_ADD_LIB(util) }
2326         for cf_header in pty.h libutil.h util.h
2327         do
2328         AC_TRY_LINK([
2329 #include <$cf_header>
2330 ],[
2331         int x = openpty((int *)0, (int *)0, (char *)0,
2332                                    (struct termios *)0, (struct winsize *)0);
2333 ],[
2334                 cf_cv_func_openpty=$cf_header
2335                 break
2336 ],[
2337                 cf_cv_func_openpty=no
2338 ])
2339         done
2340         LIBS="$cf_save_LIBS"
2341 ])
2342 ])dnl
2343 dnl ---------------------------------------------------------------------------
2344 dnl CF_FUNC_POLL version: 9 updated: 2015/10/10 13:27:32
2345 dnl ------------
2346 dnl See if the poll function really works.  Some platforms have poll(), but
2347 dnl it does not work for terminals or files.
2348 AC_DEFUN([CF_FUNC_POLL],[
2349 tty 2>&1 >/dev/null || { AC_CHECK_FUNCS(posix_openpt) }
2350 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2351 AC_TRY_RUN([
2352 #include <stdlib.h>
2353 #include <stdio.h>
2354 #include <unistd.h>
2355 #include <fcntl.h>
2356 #ifdef HAVE_POLL_H
2357 #include <poll.h>
2358 #else
2359 #include <sys/poll.h>
2360 #endif
2361 int main(void) {
2362         struct pollfd myfds;
2363         int ret;
2364
2365         /* check for Darwin bug with respect to "devices" */
2366         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2367         if (myfds.fd < 0)
2368                 myfds.fd = 0;
2369         myfds.events = POLLIN;
2370         myfds.revents = 0;
2371
2372         ret = poll(&myfds, 1, 100);
2373
2374         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2375                 ret = -1;
2376         } else {
2377                 int fd = 0;
2378                 if (!isatty(fd)) {
2379                         fd = open("/dev/tty", 2);       /* O_RDWR */
2380                 }
2381 #ifdef HAVE_POSIX_OPENPT
2382                 if (fd < 0) {
2383                         fd = posix_openpt(O_RDWR);
2384                 }
2385 #endif
2386
2387                 if (fd >= 0) {
2388                         /* also check with standard input */
2389                         myfds.fd = fd;
2390                         myfds.events = POLLIN;
2391                         myfds.revents = 0;
2392                         ret = poll(&myfds, 1, 100);
2393                 } else {
2394                         ret = -1;
2395                 }
2396         }
2397         ${cf_cv_main_return:-return}(ret < 0);
2398 }],
2399         [cf_cv_working_poll=yes],
2400         [cf_cv_working_poll=no],
2401         [cf_cv_working_poll=unknown])])
2402 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2403 ])dnl
2404 dnl ---------------------------------------------------------------------------
2405 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2406 dnl ---------------
2407 dnl Some old/broken variations define tcgetattr() only as a macro in
2408 dnl termio(s).h
2409 AC_DEFUN([CF_FUNC_TERMIOS],[
2410 AC_REQUIRE([CF_STRUCT_TERMIOS])
2411 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2412 AC_TRY_LINK([
2413 #include <sys/types.h>
2414 #ifdef HAVE_UNISTD_H
2415 #include <unistd.h>
2416 #endif
2417 #ifdef HAVE_TERMIOS_H
2418 #include <termios.h>
2419 #define TTY struct termios
2420 #else
2421 #ifdef HAVE_TERMIO_H
2422 #include <termio.h>
2423 #define TTY struct termio
2424 #endif
2425 #endif
2426 ],[
2427 TTY foo;
2428 tcgetattr(1, &foo);],
2429 [cf_cv_have_tcgetattr=yes],
2430 [cf_cv_have_tcgetattr=no])])
2431 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2432 ])dnl
2433 dnl ---------------------------------------------------------------------------
2434 dnl CF_FUNC_VSSCANF version: 6 updated: 2015/04/18 08:56:57
2435 dnl ---------------
2436 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2437 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2438 dnl other functions.
2439 AC_DEFUN([CF_FUNC_VSSCANF],
2440 [
2441 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2442 AC_TRY_LINK([
2443 #include <stdarg.h>
2444 #include <stdio.h>],[
2445         va_list ap;
2446         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2447 AC_TRY_LINK([
2448 #include <stdarg.h>
2449 #include <stdio.h>],[
2450         FILE strbuf;
2451         char *str = "from";
2452
2453         strbuf._flag = _IOREAD;
2454         strbuf._ptr = strbuf._base = (unsigned char *) str;
2455         strbuf._cnt = strlen(str);
2456         strbuf._file = _NFILE;
2457         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2458 AC_TRY_LINK([
2459 #include <stdarg.h>
2460 #include <stdio.h>],[
2461         FILE strbuf;
2462         char *str = "from";
2463
2464         strbuf._flag = _IOREAD;
2465         strbuf._ptr = strbuf._base = (unsigned char *) str;
2466         strbuf._cnt = strlen(str);
2467         strbuf._file = _NFILE;
2468         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2469 cf_cv_func_vsscanf=no])])])])
2470
2471 case $cf_cv_func_vsscanf in
2472 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2473 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2474 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2475 esac
2476
2477 ])dnl
2478 dnl ---------------------------------------------------------------------------
2479 dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
2480 dnl -----------------
2481 dnl Test for availability of useful gcc __attribute__ directives to quiet
2482 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2483 dnl to documentation, unrecognized directives cause older compilers to barf.
2484 AC_DEFUN([CF_GCC_ATTRIBUTES],
2485 [
2486 if test "$GCC" = yes
2487 then
2488 cat > conftest.i <<EOF
2489 #ifndef GCC_PRINTF
2490 #define GCC_PRINTF 0
2491 #endif
2492 #ifndef GCC_SCANF
2493 #define GCC_SCANF 0
2494 #endif
2495 #ifndef GCC_NORETURN
2496 #define GCC_NORETURN /* nothing */
2497 #endif
2498 #ifndef GCC_UNUSED
2499 #define GCC_UNUSED /* nothing */
2500 #endif
2501 EOF
2502 if test "$GCC" = yes
2503 then
2504         AC_CHECKING([for $CC __attribute__ directives])
2505 cat > conftest.$ac_ext <<EOF
2506 #line __oline__ "${as_me:-configure}"
2507 #include "confdefs.h"
2508 #include "conftest.h"
2509 #include "conftest.i"
2510 #if     GCC_PRINTF
2511 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2512 #else
2513 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2514 #endif
2515 #if     GCC_SCANF
2516 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2517 #else
2518 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2519 #endif
2520 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2521 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
2522 extern void foo(void) GCC_NORETURN;
2523 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
2524 EOF
2525         cf_printf_attribute=no
2526         cf_scanf_attribute=no
2527         for cf_attribute in scanf printf unused noreturn
2528         do
2529                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2530                 cf_directive="__attribute__(($cf_attribute))"
2531                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2532
2533                 case $cf_attribute in
2534                 (printf)
2535                         cf_printf_attribute=yes
2536                         cat >conftest.h <<EOF
2537 #define GCC_$cf_ATTRIBUTE 1
2538 EOF
2539                         ;;
2540                 (scanf)
2541                         cf_scanf_attribute=yes
2542                         cat >conftest.h <<EOF
2543 #define GCC_$cf_ATTRIBUTE 1
2544 EOF
2545                         ;;
2546                 (*)
2547                         cat >conftest.h <<EOF
2548 #define GCC_$cf_ATTRIBUTE $cf_directive
2549 EOF
2550                         ;;
2551                 esac
2552
2553                 if AC_TRY_EVAL(ac_compile); then
2554                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2555                         cat conftest.h >>confdefs.h
2556                         case $cf_attribute in
2557                         (noreturn)
2558                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2559                                 ;;
2560                         (printf)
2561                                 cf_value='/* nothing */'
2562                                 if test "$cf_printf_attribute" != no ; then
2563                                         cf_value='__attribute__((format(printf,fmt,var)))'
2564                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2565                                 fi
2566                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2567                                 ;;
2568                         (scanf)
2569                                 cf_value='/* nothing */'
2570                                 if test "$cf_scanf_attribute" != no ; then
2571                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2572                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2573                                 fi
2574                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2575                                 ;;
2576                         (unused)
2577                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2578                                 ;;
2579                         esac
2580                 fi
2581         done
2582 else
2583         fgrep define conftest.i >>confdefs.h
2584 fi
2585 rm -rf conftest*
2586 fi
2587 ])dnl
2588 dnl ---------------------------------------------------------------------------
2589 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
2590 dnl --------------
2591 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
2592 dnl compatible), attempt to determine if icc/clang is actually used.
2593 AC_DEFUN([CF_GCC_VERSION],[
2594 AC_REQUIRE([AC_PROG_CC])
2595 GCC_VERSION=none
2596 if test "$GCC" = yes ; then
2597         AC_MSG_CHECKING(version of $CC)
2598         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2599         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2600         AC_MSG_RESULT($GCC_VERSION)
2601 fi
2602 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2603 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2604 ])dnl
2605 dnl ---------------------------------------------------------------------------
2606 dnl CF_GCC_WARNINGS version: 37 updated: 2020/01/05 20:04:12
2607 dnl ---------------
2608 dnl Check if the compiler supports useful warning options.  There's a few that
2609 dnl we don't use, simply because they're too noisy:
2610 dnl
2611 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2612 dnl     -Winline (usually not worthwhile)
2613 dnl     -Wredundant-decls (system headers make this too noisy)
2614 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2615 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2616 dnl             is enabled for ncurses using "--enable-const".
2617 dnl     -pedantic
2618 dnl
2619 dnl Parameter:
2620 dnl     $1 is an optional list of gcc warning flags that a particular
2621 dnl             application might want to use, e.g., "no-unused" for
2622 dnl             -Wno-unused
2623 dnl Special:
2624 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2625 dnl
2626 AC_DEFUN([CF_GCC_WARNINGS],
2627 [
2628 AC_REQUIRE([CF_GCC_VERSION])
2629 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
2630 cat > conftest.$ac_ext <<EOF
2631 #line __oline__ "${as_me:-configure}"
2632 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2633 EOF
2634 if test "$INTEL_COMPILER" = yes
2635 then
2636 # The "-wdXXX" options suppress warnings:
2637 # remark #1419: external declaration in primary source file
2638 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2639 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2640 # remark #193: zero used for undefined preprocessing identifier
2641 # remark #593: variable "curs_sb_left_arrow" was set but never used
2642 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2643 # remark #869: parameter "tw" was never referenced
2644 # remark #981: operands are evaluated in unspecified order
2645 # warning #279: controlling expression is constant
2646
2647         AC_CHECKING([for $CC warning options])
2648         cf_save_CFLAGS="$CFLAGS"
2649         EXTRA_CFLAGS="-Wall"
2650         for cf_opt in \
2651                 wd1419 \
2652                 wd1683 \
2653                 wd1684 \
2654                 wd193 \
2655                 wd593 \
2656                 wd279 \
2657                 wd810 \
2658                 wd869 \
2659                 wd981
2660         do
2661                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2662                 if AC_TRY_EVAL(ac_compile); then
2663                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2664                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2665                 fi
2666         done
2667         CFLAGS="$cf_save_CFLAGS"
2668 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
2669 then
2670         AC_CHECKING([for $CC warning options])
2671         cf_save_CFLAGS="$CFLAGS"
2672         EXTRA_CFLAGS=
2673         cf_warn_CONST=""
2674         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2675         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2676         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2677         for cf_opt in W Wall \
2678                 Wbad-function-cast \
2679                 Wcast-align \
2680                 Wcast-qual \
2681                 Wdeclaration-after-statement \
2682                 Wextra \
2683                 Winline \
2684                 Wmissing-declarations \
2685                 Wmissing-prototypes \
2686                 Wnested-externs \
2687                 Wpointer-arith \
2688                 Wshadow \
2689                 Wstrict-prototypes \
2690                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
2691         do
2692                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2693                 if AC_TRY_EVAL(ac_compile); then
2694                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2695                         case $cf_opt in
2696                         (Winline)
2697                                 case $GCC_VERSION in
2698                                 ([[34]].*)
2699                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2700                                         continue;;
2701                                 esac
2702                                 ;;
2703                         (Wpointer-arith)
2704                                 case $GCC_VERSION in
2705                                 ([[12]].*)
2706                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2707                                         continue;;
2708                                 esac
2709                                 ;;
2710                         esac
2711                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2712                 fi
2713         done
2714         CFLAGS="$cf_save_CFLAGS"
2715 fi
2716 rm -rf conftest*
2717
2718 AC_SUBST(EXTRA_CFLAGS)
2719 ])dnl
2720 dnl ---------------------------------------------------------------------------
2721 dnl CF_GETOPT_HEADER version: 6 updated: 2014/07/22 14:45:54
2722 dnl ----------------
2723 dnl Check for getopt's variables which are commonly defined in stdlib.h,
2724 dnl unistd.h or (nonstandard) in getopt.h
2725 AC_DEFUN([CF_GETOPT_HEADER],
2726 [
2727 AC_HAVE_HEADERS(unistd.h getopt.h)
2728 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
2729 cf_cv_getopt_header=none
2730 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2731 do
2732 AC_TRY_COMPILE([
2733 #include <$cf_header>],
2734 [int x = optind; char *y = optarg],
2735 [cf_cv_getopt_header=$cf_header
2736  break])
2737 done
2738 ])
2739 if test $cf_cv_getopt_header != none ; then
2740         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2741 fi
2742 if test $cf_cv_getopt_header = getopt.h ; then
2743         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2744 fi
2745 ])dnl
2746 dnl ---------------------------------------------------------------------------
2747 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
2748 dnl -----------------
2749 AC_DEFUN([CF_GNATPREP_OPT_T],[
2750 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
2751 cf_cv_gnatprep_opt_t=no
2752 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
2753 ])
2754 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
2755 AC_SUBST(GNATPREP_OPTS)
2756 ])dnl
2757 dnl ---------------------------------------------------------------------------
2758 dnl CF_GNAT_GENERICS version: 4 updated: 2019/12/31 08:53:54
2759 dnl ----------------
2760 AC_DEFUN([CF_GNAT_GENERICS],
2761 [
2762 AC_REQUIRE([CF_GNAT_VERSION])
2763
2764 AC_MSG_CHECKING(if GNAT supports generics)
2765 case $cf_cv_gnat_version in
2766 (3.[[1-9]]*|[[4-9]].*)
2767         cf_gnat_generics=yes
2768         ;;
2769 (*)
2770         cf_gnat_generics=no
2771         ;;
2772 esac
2773 AC_MSG_RESULT($cf_gnat_generics)
2774
2775 if test "$cf_gnat_generics" = yes
2776 then
2777         cf_compile_generics=generics
2778         cf_generic_objects="\${GENOBJS}"
2779 else
2780         cf_compile_generics=
2781         cf_generic_objects=
2782 fi
2783
2784 AC_SUBST(cf_compile_generics)
2785 AC_SUBST(cf_generic_objects)
2786 ])dnl
2787 dnl ---------------------------------------------------------------------------
2788 dnl CF_GNAT_PROJECTS version: 10 updated: 2019/12/31 08:53:54
2789 dnl ----------------
2790 dnl GNAT projects are configured with ".gpr" project files.
2791 dnl GNAT libraries are a further development, using the project feature.
2792 AC_DEFUN([CF_GNAT_PROJECTS],
2793 [
2794 AC_REQUIRE([CF_GNAT_VERSION])
2795 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
2796
2797 cf_gnat_libraries=no
2798 cf_gnat_projects=no
2799
2800 if test "$enable_gnat_projects" != no ; then
2801 AC_MSG_CHECKING(if GNAT supports project files)
2802 case $cf_cv_gnat_version in
2803 (3.[[0-9]]*)
2804         ;;
2805 (*)
2806         case $cf_cv_system_name in
2807         (cygwin*|msys*)
2808                 ;;
2809         (*)
2810                 rm -rf conftest* *~conftest*
2811                 if mkdir conftest.src conftest.bin conftest.lib
2812                 then
2813                         cd conftest.src
2814                         rm -rf conftest* *~conftest*
2815                         cat >>library.gpr <<CF_EOF
2816 project Library is
2817   Kind := External ("LIB_KIND");
2818   for Library_Name use "ConfTest";
2819   for Object_Dir use ".";
2820   for Library_ALI_Dir use External("LIBRARY_DIR");
2821   for Library_Version use External ("SONAME");
2822   for Library_Kind use Kind;
2823   for Library_Dir use External("BUILD_DIR");
2824   Source_Dir := External ("SOURCE_DIR");
2825   for Source_Dirs use (Source_Dir);
2826 end Library;
2827 CF_EOF
2828                         cat >>confpackage.ads <<CF_EOF
2829 package ConfPackage is
2830    procedure conftest;
2831 end ConfPackage;
2832 CF_EOF
2833                         cat >>confpackage.adb <<CF_EOF
2834 with Text_IO;
2835 package body ConfPackage is
2836    procedure conftest is
2837    begin
2838       Text_IO.Put ("Hello World");
2839       Text_IO.New_Line;
2840    end conftest;
2841 end ConfPackage;
2842 CF_EOF
2843                         if ( $cf_ada_make $ADAFLAGS \
2844                                         -Plibrary.gpr \
2845                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
2846                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
2847                                         -XSOURCE_DIR=`pwd` \
2848                                         -XSONAME=libConfTest.so.1 \
2849                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
2850                                 cf_gnat_projects=yes
2851                         fi
2852                         cd ..
2853                 fi
2854                 if test -f conftest.lib/confpackage.ali
2855                 then
2856                         cf_gnat_libraries=yes
2857                 fi
2858                 rm -rf conftest* *~conftest*
2859                 ;;
2860         esac
2861         ;;
2862 esac
2863 AC_MSG_RESULT($cf_gnat_projects)
2864 fi # enable_gnat_projects
2865
2866 if test $cf_gnat_projects = yes
2867 then
2868         AC_MSG_CHECKING(if GNAT supports libraries)
2869         AC_MSG_RESULT($cf_gnat_libraries)
2870 fi
2871
2872 if test "$cf_gnat_projects" = yes
2873 then
2874         USE_OLD_MAKERULES="#"
2875         USE_GNAT_PROJECTS=""
2876 else
2877         USE_OLD_MAKERULES=""
2878         USE_GNAT_PROJECTS="#"
2879 fi
2880
2881 if test "$cf_gnat_libraries" = yes
2882 then
2883         USE_GNAT_LIBRARIES=""
2884 else
2885         USE_GNAT_LIBRARIES="#"
2886 fi
2887
2888 AC_SUBST(USE_OLD_MAKERULES)
2889 AC_SUBST(USE_GNAT_PROJECTS)
2890 AC_SUBST(USE_GNAT_LIBRARIES)
2891 ])dnl
2892 dnl ---------------------------------------------------------------------------
2893 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
2894 dnl --------------
2895 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
2896 dnl is noted that gnat may compile a tasking unit even for configurations which
2897 dnl fail at runtime.
2898 AC_DEFUN([CF_GNAT_SIGINT],[
2899 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
2900 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
2901
2902 package ConfTest is
2903
2904    pragma Warnings (Off);  --  the next pragma exists since 3.11p
2905    pragma Unreserve_All_Interrupts;
2906    pragma Warnings (On);
2907
2908    protected Process is
2909       procedure Stop;
2910       function Continue return Boolean;
2911       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
2912    private
2913       Done : Boolean := False;
2914    end Process;
2915
2916 end ConfTest;],
2917 [package body ConfTest is
2918    protected body Process is
2919       procedure Stop is
2920       begin
2921          Done := True;
2922       end Stop;
2923       function Continue return Boolean is
2924       begin
2925          return not Done;
2926       end Continue;
2927    end Process;
2928 end ConfTest;],
2929         [cf_cv_gnat_sigint=yes],
2930         [cf_cv_gnat_sigint=no])])
2931
2932 if test $cf_cv_gnat_sigint = yes ; then
2933         USE_GNAT_SIGINT=""
2934 else
2935         USE_GNAT_SIGINT="#"
2936 fi
2937 AC_SUBST(USE_GNAT_SIGINT)
2938 ])dnl
2939 dnl ---------------------------------------------------------------------------
2940 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
2941 dnl ----------------
2942 dnl Verify that a test program compiles/links with GNAT.
2943 dnl $cf_ada_make is set to the program that compiles/links
2944 dnl $ADAFLAGS may be set to the GNAT flags.
2945 dnl
2946 dnl $1 is the text of the spec
2947 dnl $2 is the text of the body
2948 dnl $3 is the shell command to execute if successful
2949 dnl $4 is the shell command to execute if not successful
2950 AC_DEFUN([CF_GNAT_TRY_LINK],
2951 [
2952 rm -rf conftest* *~conftest*
2953 cat >>conftest.ads <<CF_EOF
2954 $1
2955 CF_EOF
2956 cat >>conftest.adb <<CF_EOF
2957 $2
2958 CF_EOF
2959 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
2960 ifelse($3,,      :,[      $3])
2961 ifelse($4,,,[else
2962    $4])
2963 fi
2964 rm -rf conftest* *~conftest*
2965 ])dnl
2966 dnl ---------------------------------------------------------------------------
2967 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
2968 dnl ---------------
2969 dnl Verify that a test program compiles and runs with GNAT
2970 dnl $cf_ada_make is set to the program that compiles/links
2971 dnl $ADAFLAGS may be set to the GNAT flags.
2972 dnl
2973 dnl $1 is the text of the spec
2974 dnl $2 is the text of the body
2975 dnl $3 is the shell command to execute if successful
2976 dnl $4 is the shell command to execute if not successful
2977 AC_DEFUN([CF_GNAT_TRY_RUN],
2978 [
2979 rm -rf conftest* *~conftest*
2980 cat >>conftest.ads <<CF_EOF
2981 $1
2982 CF_EOF
2983 cat >>conftest.adb <<CF_EOF
2984 $2
2985 CF_EOF
2986 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
2987    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
2988 ifelse($3,,      :,[      $3])
2989 ifelse($4,,,[   else
2990       $4])
2991    fi
2992 ifelse($4,,,[else
2993    $4])
2994 fi
2995 rm -rf conftest* *~conftest*
2996 ])dnl
2997 dnl ---------------------------------------------------------------------------
2998 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
2999 dnl ---------------
3000 dnl $1 = cache variable to update
3001 dnl $2 = program name
3002 dnl Verify version of GNAT or related tool
3003 AC_DEFUN([CF_GNAT_VERSION],
3004 [
3005 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3006 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3007         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3008         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3009 ])
3010 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3011 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3012 ])dnl
3013 dnl ---------------------------------------------------------------------------
3014 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3015 dnl -------------
3016 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3017 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3018 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3019 dnl since it is interwoven with GNU extensions.
3020 dnl
3021 dnl Well, yes we could work around it...
3022 dnl
3023 dnl Parameters:
3024 dnl     $1 is the nominal value for _XOPEN_SOURCE
3025 AC_DEFUN([CF_GNU_SOURCE],
3026 [
3027 cf_gnu_xopen_source=ifelse($1,,500,$1)
3028
3029 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3030 AC_TRY_COMPILE([#include <sys/types.h>],[
3031         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3032                 return 0;
3033         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3034                 return 0;
3035         #else
3036         #       error not GNU C library
3037         #endif],
3038         [cf_cv_gnu_library=yes],
3039         [cf_cv_gnu_library=no])
3040 ])
3041
3042 if test x$cf_cv_gnu_library = xyes; then
3043
3044         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3045         # was changed to help a little.  newlib incorporated the change about 4
3046         # years later.
3047         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3048                 cf_save="$CPPFLAGS"
3049                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3050                 AC_TRY_COMPILE([#include <sys/types.h>],[
3051                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3052                                 return 0;
3053                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3054                                 return 0;
3055                         #else
3056                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3057                         #endif],
3058                         [cf_cv_gnu_library_219=yes],
3059                         [cf_cv_gnu_library_219=no])
3060                 CPPFLAGS="$cf_save"
3061         ])
3062
3063         if test "x$cf_cv_gnu_library_219" = xyes; then
3064                 cf_save="$CPPFLAGS"
3065                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3066                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3067                         AC_TRY_COMPILE([
3068                                 #include <limits.h>
3069                                 #include <sys/types.h>
3070                                 ],[
3071                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3072                                         return 0;
3073                                 #else
3074                                 #       error GNU C library is too old
3075                                 #endif],
3076                                 [cf_cv_gnu_dftsrc_219=yes],
3077                                 [cf_cv_gnu_dftsrc_219=no])
3078                         ])
3079                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3080         else
3081                 cf_cv_gnu_dftsrc_219=maybe
3082         fi
3083
3084         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3085
3086                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3087                 AC_TRY_COMPILE([#include <sys/types.h>],[
3088                         #ifndef _XOPEN_SOURCE
3089                         #error  expected _XOPEN_SOURCE to be defined
3090                         #endif],
3091                         [cf_cv_gnu_source=no],
3092                         [cf_save="$CPPFLAGS"
3093                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3094                          AC_TRY_COMPILE([#include <sys/types.h>],[
3095                                 #ifdef _XOPEN_SOURCE
3096                                 #error  expected _XOPEN_SOURCE to be undefined
3097                                 #endif],
3098                                 [cf_cv_gnu_source=no],
3099                                 [cf_cv_gnu_source=yes])
3100                         CPPFLAGS="$cf_save"
3101                         ])
3102                 ])
3103
3104                 if test "$cf_cv_gnu_source" = yes
3105                 then
3106                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3107                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3108                         AC_TRY_COMPILE([#include <sys/types.h>],[
3109                                 #ifdef _DEFAULT_SOURCE
3110                                 #error  expected _DEFAULT_SOURCE to be undefined
3111                                 #endif],
3112                                 [cf_cv_default_source=no],
3113                                 [cf_cv_default_source=yes])
3114                         ])
3115                         if test "$cf_cv_default_source" = yes
3116                         then
3117                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3118                         fi
3119                 fi
3120         fi
3121
3122 fi
3123 ])dnl
3124 dnl ---------------------------------------------------------------------------
3125 dnl CF_GPP_LIBRARY version: 12 updated: 2015/04/17 21:13:04
3126 dnl --------------
3127 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3128 dnl problem :-).  If we have the compiler but no library, we'll be able to
3129 dnl configure, but won't be able to build the c++ demo program.
3130 AC_DEFUN([CF_GPP_LIBRARY],
3131 [
3132 cf_cxx_library=unknown
3133 case $cf_cv_system_name in
3134 (os2*)
3135         cf_gpp_libname=gpp
3136         ;;
3137 (*)
3138         cf_gpp_libname=g++
3139         ;;
3140 esac
3141 if test "$GXX" = yes; then
3142         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3143         cf_save="$LIBS"
3144         CF_ADD_LIB($cf_gpp_libname)
3145         AC_TRY_LINK([
3146 #include <$cf_gpp_libname/builtin.h>
3147         ],
3148         [two_arg_error_handler_t foo2 = lib_error_handler],
3149         [cf_cxx_library=yes
3150          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3151          if test "$cf_gpp_libname" = cpp ; then
3152             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3153          else
3154             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3155          fi],
3156         [AC_TRY_LINK([
3157 #include <builtin.h>
3158         ],
3159         [two_arg_error_handler_t foo2 = lib_error_handler],
3160         [cf_cxx_library=yes
3161          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3162          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3163         [cf_cxx_library=no])])
3164         LIBS="$cf_save"
3165         AC_MSG_RESULT($cf_cxx_library)
3166 fi
3167 ])dnl
3168 dnl ---------------------------------------------------------------------------
3169 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3170 dnl --------------
3171 dnl Check for version of g++
3172 AC_DEFUN([CF_GXX_VERSION],[
3173 AC_REQUIRE([AC_PROG_CPP])
3174 GXX_VERSION=none
3175 if test "$GXX" = yes; then
3176         AC_MSG_CHECKING(version of ${CXX:-g++})
3177         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3178         if test -z "$GXX_VERSION"
3179         then
3180                 GXX_VERSION=unknown
3181                 GXX=no
3182         fi
3183         AC_MSG_RESULT($GXX_VERSION)
3184 fi
3185 ])dnl
3186 dnl ---------------------------------------------------------------------------
3187 dnl CF_GXX_WARNINGS version: 9 updated: 2015/04/17 21:13:04
3188 dnl ---------------
3189 dnl Check if the compiler supports useful warning options.
3190 dnl
3191 dnl Most of gcc's options apply to g++, except:
3192 dnl     -Wbad-function-cast
3193 dnl     -Wmissing-declarations
3194 dnl     -Wnested-externs
3195 dnl
3196 dnl Omit a few (for now):
3197 dnl     -Winline
3198 dnl
3199 dnl Parameter:
3200 dnl     $1 is an optional list of g++ warning flags that a particular
3201 dnl             application might want to use, e.g., "no-unused" for
3202 dnl             -Wno-unused
3203 dnl Special:
3204 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3205 dnl
3206 AC_DEFUN([CF_GXX_WARNINGS],
3207 [
3208
3209 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3210 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3211
3212 AC_REQUIRE([CF_GXX_VERSION])
3213
3214 AC_LANG_SAVE
3215 AC_LANG_CPLUSPLUS
3216
3217 cat > conftest.$ac_ext <<EOF
3218 #line __oline__ "configure"
3219 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3220 EOF
3221
3222 if test "$INTEL_CPLUSPLUS" = yes
3223 then
3224 # The "-wdXXX" options suppress warnings:
3225 # remark #1419: external declaration in primary source file
3226 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3227 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3228 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3229 # remark #193: zero used for undefined preprocessing identifier
3230 # remark #593: variable "curs_sb_left_arrow" was set but never used
3231 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3232 # remark #869: parameter "tw" was never referenced
3233 # remark #981: operands are evaluated in unspecified order
3234 # warning #269: invalid format string conversion
3235
3236         AC_CHECKING([for $CC warning options])
3237         cf_save_CXXFLAGS="$CXXFLAGS"
3238         EXTRA_CXXFLAGS="-Wall"
3239         for cf_opt in \
3240                 wd1419 \
3241                 wd1682 \
3242                 wd1683 \
3243                 wd1684 \
3244                 wd193 \
3245                 wd279 \
3246                 wd593 \
3247                 wd810 \
3248                 wd869 \
3249                 wd981
3250         do
3251                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3252                 if AC_TRY_EVAL(ac_compile); then
3253                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3254                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3255                 fi
3256         done
3257         CXXFLAGS="$cf_save_CXXFLAGS"
3258
3259 elif test "$GXX" = yes
3260 then
3261         AC_CHECKING([for $CXX warning options])
3262         cf_save_CXXFLAGS="$CXXFLAGS"
3263         EXTRA_CXXFLAGS="-W -Wall"
3264         cf_gxx_extra_warnings=""
3265         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3266         case "$GCC_VERSION" in
3267         ([[1-2]].*)
3268                 ;;
3269         (*)
3270                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3271                 ;;
3272         esac
3273         for cf_opt in \
3274                 Wabi \
3275                 fabi-version=0 \
3276                 Wextra \
3277                 Wignored-qualifiers \
3278                 Wlogical-op \
3279                 Woverloaded-virtual \
3280                 Wsign-promo \
3281                 Wsynth \
3282                 Wold-style-cast \
3283                 Wcast-align \
3284                 Wcast-qual \
3285                 Wpointer-arith \
3286                 Wshadow \
3287                 Wundef $cf_gxx_extra_warnings $1
3288         do
3289                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3290                 if AC_TRY_EVAL(ac_compile); then
3291                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3292                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3293                 else
3294                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3295                 fi
3296         done
3297         CXXFLAGS="$cf_save_CXXFLAGS"
3298 fi
3299
3300 rm -rf conftest*
3301 AC_LANG_RESTORE
3302 AC_SUBST(EXTRA_CXXFLAGS)
3303 ])dnl
3304 dnl ---------------------------------------------------------------------------
3305 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3306 dnl ------------
3307 dnl Look for an instance of the Berkeley hashed database.
3308 dnl
3309 dnl $1 = optional parameter, to specify install-prefix for the database.
3310 AC_DEFUN([CF_HASHED_DB],
3311 [
3312 ifelse([$1],,,[
3313 case $1 in
3314 (yes|*able*)
3315         ;;
3316 (*)
3317         if test -d "$1" ; then
3318                 CF_ADD_INCDIR($1/include)
3319                 CF_ADD_LIBDIR($1/lib)
3320         else
3321                 case "$1" in
3322                 (./*|../*|/*)
3323                         AC_MSG_WARN(no such directory $1)
3324                         ;;
3325                 (*)
3326                         CF_FIND_SUB_INCDIR($1)
3327                         CF_FIND_SUB_LIBDIR($1)
3328                         ;;
3329                 esac
3330         fi
3331 esac
3332 ])
3333 AC_CHECK_HEADER(db.h,[
3334 CF_HASHED_DB_VERSION
3335 if test "$cf_cv_hashed_db_version" = unknown ; then
3336         AC_MSG_ERROR(Cannot determine version of db)
3337 else
3338         CF_HASHED_DB_LIBS
3339         if test "$cf_cv_hashed_db_libs" = unknown ; then
3340                 AC_MSG_ERROR(Cannot determine library for db)
3341         elif test "$cf_cv_hashed_db_libs" != default ; then
3342                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3343         fi
3344 fi
3345 ],[
3346         AC_MSG_ERROR(Cannot find db.h)
3347 ])
3348 ])dnl
3349 dnl ---------------------------------------------------------------------------
3350 dnl CF_HASHED_DB_LIBS version: 9 updated: 2010/05/29 16:31:02
3351 dnl -----------------
3352 dnl Given that we have the header and version for hashed database, find the
3353 dnl library information.
3354 AC_DEFUN([CF_HASHED_DB_LIBS],
3355 [
3356 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3357 cf_cv_hashed_db_libs=unknown
3358 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3359 do
3360         cf_save_libs="$LIBS"
3361         if test -n "$cf_db_libs"; then
3362                 CF_ADD_LIB($cf_db_libs)
3363         fi
3364         CF_MSG_LOG(checking for library "$cf_db_libs")
3365         AC_TRY_LINK([
3366 $ac_includes_default
3367 #include <db.h>
3368 ],[
3369         char *path = "/tmp/foo";
3370 #ifdef DB_VERSION_MAJOR
3371 #if DB_VERSION_MAJOR >= 4
3372         DB *result = 0;
3373         db_create(&result, NULL, 0);
3374         result->open(result,
3375                 NULL,
3376                 path,
3377                 path,
3378                 DB_HASH,
3379                 DB_CREATE,
3380                 0644);
3381 #elif DB_VERSION_MAJOR >= 3
3382         DB *result = 0;
3383         db_create(&result, NULL, 0);
3384         result->open(result,
3385                 path,
3386                 path,
3387                 DB_HASH,
3388                 DB_CREATE,
3389                 0644);
3390 #elif DB_VERSION_MAJOR >= 2
3391         DB *result = 0;
3392         db_open(path,
3393                 DB_HASH,
3394                 DB_CREATE,
3395                 0644,
3396                 (DB_ENV *) 0,
3397                 (DB_INFO *) 0,
3398                 &result);
3399 #endif /* DB_VERSION_MAJOR */
3400 #else
3401         DB *result = dbopen(path,
3402                      2,
3403                      0644,
3404                      DB_HASH,
3405                      0);
3406 #endif
3407         ${cf_cv_main_return:-return}(result != 0)
3408 ],[
3409         if test -n "$cf_db_libs" ; then
3410                 cf_cv_hashed_db_libs=$cf_db_libs
3411         else
3412                 cf_cv_hashed_db_libs=default
3413         fi
3414         LIBS="$cf_save_libs"
3415         break
3416 ])
3417         LIBS="$cf_save_libs"
3418 done
3419 ])
3420 ])dnl
3421 dnl ---------------------------------------------------------------------------
3422 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3423 dnl --------------------
3424 dnl Given that we have the header file for hashed database, find the version
3425 dnl information.
3426 AC_DEFUN([CF_HASHED_DB_VERSION],
3427 [
3428 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3429 cf_cv_hashed_db_version=unknown
3430
3431 for cf_db_version in 1 2 3 4 5 6
3432 do
3433         CF_MSG_LOG(checking for db version $cf_db_version)
3434         AC_TRY_COMPILE([
3435 $ac_includes_default
3436 #include <db.h>
3437
3438 #ifdef DB_VERSION_MAJOR
3439         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3440 #if $cf_db_version == DB_VERSION_MAJOR
3441         /* ok */
3442 #else
3443         make an error
3444 #endif
3445 #else
3446 #if $cf_db_version == 1
3447         /* ok: assuming this is DB 1.8.5 */
3448 #else
3449         make an error
3450 #endif
3451 #endif
3452 ],[DBT *foo = 0],[
3453         cf_cv_hashed_db_version=$cf_db_version
3454         break
3455         ])
3456 done
3457 ])
3458 ])dnl
3459 dnl ---------------------------------------------------------------------------
3460 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
3461 dnl --------------
3462 dnl Construct a search-list of directories for a nonstandard header-file
3463 dnl
3464 dnl Parameters
3465 dnl     $1 = the variable to return as result
3466 dnl     $2 = the package name
3467 AC_DEFUN([CF_HEADER_PATH],
3468 [
3469 $1=
3470
3471 # collect the current set of include-directories from compiler flags
3472 cf_header_path_list=""
3473 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3474         for cf_header_path in $CPPFLAGS $CFLAGS
3475         do
3476                 case $cf_header_path in
3477                 (-I*)
3478                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3479                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3480                         cf_header_path_list="$cf_header_path_list [$]$1"
3481                         ;;
3482                 esac
3483         done
3484 fi
3485
3486 # add the variations for the package we are looking for
3487 CF_SUBDIR_PATH($1,$2,include)
3488
3489 test "$includedir" != NONE && \
3490 test "$includedir" != "/usr/include" && \
3491 test -d "$includedir" && {
3492         test -d $includedir &&    $1="[$]$1 $includedir"
3493         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
3494 }
3495
3496 test "$oldincludedir" != NONE && \
3497 test "$oldincludedir" != "/usr/include" && \
3498 test -d "$oldincludedir" && {
3499         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
3500         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
3501 }
3502
3503 $1="[$]$1 $cf_header_path_list"
3504 ])dnl
3505 dnl ---------------------------------------------------------------------------
3506 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
3507 dnl ---------------
3508 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3509 AC_DEFUN([CF_HELP_MESSAGE],
3510 [CF_ACVERSION_CHECK(2.53,[],[
3511 AC_DIVERT_HELP($1)])dnl
3512 ])dnl
3513 dnl ---------------------------------------------------------------------------
3514 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3515 dnl ---------------
3516 dnl Construct the list of include-options according to whether we're building
3517 dnl in the source directory or using '--srcdir=DIR' option.
3518 AC_DEFUN([CF_INCLUDE_DIRS],
3519 [
3520 if test "$srcdir" != "."; then
3521         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3522 fi
3523 CPPFLAGS="-I../include $CPPFLAGS"
3524 if test "$srcdir" != "."; then
3525         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3526 fi
3527 CPPFLAGS="-I. $CPPFLAGS"
3528 AC_SUBST(CPPFLAGS)
3529 ])dnl
3530 dnl ---------------------------------------------------------------------------
3531 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
3532 dnl ---------------
3533 dnl prompt for/fill-in useful install-program options
3534 AC_DEFUN([CF_INSTALL_OPTS],
3535 [
3536 CF_INSTALL_OPT_S
3537 CF_INSTALL_OPT_P
3538 CF_INSTALL_OPT_O
3539 ])dnl
3540 dnl ---------------------------------------------------------------------------
3541 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
3542 dnl ----------------
3543 dnl Almost all "install" programs default to the current user's ownership.
3544 dnl Almost - MINIX is an exception.
3545 AC_DEFUN([CF_INSTALL_OPT_O],
3546 [
3547 AC_MSG_CHECKING(if install needs to be told about ownership)
3548 case `$ac_config_guess` in
3549 (*minix)
3550         with_install_o=yes
3551         ;;
3552 (*)
3553         with_install_o=no
3554         ;;
3555 esac
3556
3557 AC_MSG_RESULT($with_install_o)
3558 if test "x$with_install_o" = xyes
3559 then
3560         INSTALL_OPT_O=`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`
3561 else
3562         INSTALL_OPT_O=
3563 fi
3564
3565 AC_SUBST(INSTALL_OPT_O)
3566 ])dnl
3567 dnl ---------------------------------------------------------------------------
3568 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
3569 dnl ----------------
3570 dnl Some install-programs accept a "-p" option to preserve file modification
3571 dnl timestamps.  That can be useful as an install option, as well as a way to
3572 dnl avoid the need for ranlib after copying a static archive.
3573 AC_DEFUN([CF_INSTALL_OPT_P],
3574 [
3575 : ${INSTALL:=install}
3576 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
3577         rm -rf conftest*
3578         date >conftest.in
3579         mkdir conftest.out
3580         sleep 3
3581         if $INSTALL -p conftest.in conftest.out 2>/dev/null
3582         then
3583                 if test -f conftest.out/conftest.in
3584                 then
3585                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
3586                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
3587                         if test -s conftest.err
3588                         then
3589                                 cf_cv_install_p=no
3590                         else
3591                                 cf_cv_install_p=yes
3592                         fi
3593                 else
3594                         cf_cv_install_p=no
3595                 fi
3596         else
3597                 cf_cv_install_p=no
3598         fi
3599         rm -rf conftest*
3600 ])
3601 ])dnl
3602 dnl ---------------------------------------------------------------------------
3603 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
3604 dnl ----------------
3605 dnl By default, we should strip executables which are installed, but leave the
3606 dnl ability to suppress that for unit-testing.
3607 AC_DEFUN([CF_INSTALL_OPT_S],
3608 [
3609 AC_MSG_CHECKING(if you want to install stripped executables)
3610 CF_ARG_DISABLE(stripping,
3611         [  --disable-stripping     do not strip (debug info) installed executables],
3612         [with_stripping=no],
3613         [with_stripping=yes])
3614 AC_MSG_RESULT($with_stripping)
3615
3616 if test "$with_stripping" = yes
3617 then
3618         INSTALL_OPT_S="-s"
3619 else
3620         INSTALL_OPT_S=
3621 fi
3622 AC_SUBST(INSTALL_OPT_S)
3623 ])dnl
3624 dnl ---------------------------------------------------------------------------
3625 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
3626 dnl -----------------
3627 dnl Check if the given compiler is really the Intel compiler for Linux.  It
3628 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
3629 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
3630 dnl
3631 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
3632 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
3633 dnl the wrappers for gcc and g++ warnings.
3634 dnl
3635 dnl $1 = GCC (default) or GXX
3636 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
3637 dnl $3 = CFLAGS (default) or CXXFLAGS
3638 AC_DEFUN([CF_INTEL_COMPILER],[
3639 AC_REQUIRE([AC_CANONICAL_HOST])
3640 ifelse([$2],,INTEL_COMPILER,[$2])=no
3641
3642 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
3643         case $host_os in
3644         (linux*|gnu*)
3645                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
3646                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
3647                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
3648                 AC_TRY_COMPILE([],[
3649 #ifdef __INTEL_COMPILER
3650 #else
3651 make an error
3652 #endif
3653 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
3654 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
3655 ],[])
3656                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
3657                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
3658                 ;;
3659         esac
3660 fi
3661 ])dnl
3662 dnl ---------------------------------------------------------------------------
3663 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
3664 dnl ----------
3665 dnl Check if we have either a function or macro for 'isascii()'.
3666 AC_DEFUN([CF_ISASCII],
3667 [
3668 AC_MSG_CHECKING(for isascii)
3669 AC_CACHE_VAL(cf_cv_have_isascii,[
3670         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
3671         [cf_cv_have_isascii=yes],
3672         [cf_cv_have_isascii=no])
3673 ])dnl
3674 AC_MSG_RESULT($cf_cv_have_isascii)
3675 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
3676 ])dnl
3677 dnl ---------------------------------------------------------------------------
3678 dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
3679 dnl ------------
3680 dnl Add checks for large file support.
3681 AC_DEFUN([CF_LARGEFILE],[
3682 ifdef([AC_FUNC_FSEEKO],[
3683         AC_SYS_LARGEFILE
3684         if test "$enable_largefile" != no ; then
3685         AC_FUNC_FSEEKO
3686
3687         # Normally we would collect these definitions in the config.h,
3688         # but (like _XOPEN_SOURCE), some environments rely on having these
3689         # defined before any of the system headers are included.  Another
3690         # case comes up with C++, e.g., on AIX the compiler compiles the
3691         # header files by themselves before looking at the body files it is
3692         # told to compile.  For ncurses, those header files do not include
3693         # the config.h
3694         if test "$ac_cv_sys_large_files" != no
3695         then
3696                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
3697         fi
3698         if test "$ac_cv_sys_largefile_source" != no
3699         then
3700                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
3701         fi
3702         if test "$ac_cv_sys_file_offset_bits" != no
3703         then
3704                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
3705         fi
3706
3707         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
3708                 AC_TRY_COMPILE([
3709 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
3710 #include <sys/types.h>
3711 #include <dirent.h>
3712                 ],[
3713                 /* if transitional largefile support is setup, this is true */
3714                 extern struct dirent64 * readdir(DIR *);
3715                 struct dirent64 *x = readdir((DIR *)0);
3716                 struct dirent *y = readdir((DIR *)0);
3717                 int z = x - y;
3718                 ],
3719                 [cf_cv_struct_dirent64=yes],
3720                 [cf_cv_struct_dirent64=no])
3721         ])
3722         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
3723         fi
3724 ])
3725 ])
3726 dnl ---------------------------------------------------------------------------
3727 dnl CF_LDFLAGS_STATIC version: 12 updated: 2015/04/18 08:56:57
3728 dnl -----------------
3729 dnl Check for compiler/linker flags used to temporarily force usage of static
3730 dnl libraries.  This depends on the compiler and platform.  Use this to help
3731 dnl ensure that the linker picks up a given library based on its position in
3732 dnl the list of linker options and libraries.
3733 AC_DEFUN([CF_LDFLAGS_STATIC],[
3734
3735 if test "$GCC" = yes ; then
3736         case $cf_cv_system_name in
3737         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
3738                 LDFLAGS_STATIC=
3739                 LDFLAGS_SHARED=
3740                 ;;
3741         (*)     # normally, except when broken
3742                 LDFLAGS_STATIC=-static
3743                 LDFLAGS_SHARED=-dynamic
3744                 ;;
3745         esac
3746 else
3747         case $cf_cv_system_name in
3748         (aix[[4-7]]*)   # from ld manpage
3749                 LDFLAGS_STATIC=-bstatic
3750                 LDFLAGS_SHARED=-bdynamic
3751                 ;;
3752         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
3753                 # We could also use just "archive" and "shared".
3754                 LDFLAGS_STATIC=-Wl,-a,archive_shared
3755                 LDFLAGS_SHARED=-Wl,-a,shared_archive
3756                 ;;
3757         (irix*)         # from ld manpage IRIX64
3758                 LDFLAGS_STATIC=-Bstatic
3759                 LDFLAGS_SHARED=-Bdynamic
3760                 ;;
3761         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
3762                 # alternative "-oldstyle_liblookup" (not in cc manpage)
3763                 LDFLAGS_STATIC=-noso
3764                 LDFLAGS_SHARED=-so_archive
3765                 ;;
3766         (solaris2*)
3767                 LDFLAGS_STATIC=-Bstatic
3768                 LDFLAGS_SHARED=-Bdynamic
3769                 ;;
3770         esac
3771 fi
3772
3773 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
3774 then
3775         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
3776
3777         rm -f libconftest.a
3778         cat >conftest.$ac_ext <<EOF
3779 #line __oline__ "configure"
3780 #include <stdio.h>
3781 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
3782 EOF
3783         if AC_TRY_EVAL(ac_compile) ; then
3784                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
3785                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
3786         fi
3787         rm -f conftest.*
3788
3789         cf_save_LIBS="$LIBS"
3790
3791         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
3792         AC_TRY_LINK([
3793 #line __oline__ "configure"
3794 #include <stdio.h>
3795 int cf_ldflags_static(FILE *fp);
3796 ],[
3797         return cf_ldflags_static(stdin);
3798 ],[
3799         # some linkers simply ignore the -dynamic
3800         case x`file conftest$ac_exeext 2>/dev/null` in
3801         (*static*)
3802                 cf_ldflags_static=no
3803                 ;;
3804         (*)
3805                 cf_ldflags_static=yes
3806                 ;;
3807         esac
3808 ],[cf_ldflags_static=no])
3809
3810         rm -f libconftest.*
3811         LIBS="$cf_save_LIBS"
3812
3813         AC_MSG_RESULT($cf_ldflags_static)
3814
3815         if test $cf_ldflags_static != yes
3816         then
3817                 LDFLAGS_STATIC=
3818                 LDFLAGS_SHARED=
3819         fi
3820 else
3821         LDFLAGS_STATIC=
3822         LDFLAGS_SHARED=
3823 fi
3824
3825 AC_SUBST(LDFLAGS_STATIC)
3826 AC_SUBST(LDFLAGS_SHARED)
3827 ])
3828 dnl ---------------------------------------------------------------------------
3829 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
3830 dnl ---------------
3831 dnl For the given system and compiler, find the compiler flags to pass to the
3832 dnl loader to use the "rpath" feature.
3833 AC_DEFUN([CF_LD_RPATH_OPT],
3834 [
3835 AC_REQUIRE([CF_CHECK_CACHE])
3836
3837 LD_RPATH_OPT=
3838 if test "x$cf_cv_enable_rpath" != xno
3839 then
3840         AC_MSG_CHECKING(for an rpath option)
3841         case $cf_cv_system_name in
3842         (irix*)
3843                 if test "$GCC" = yes; then
3844                         LD_RPATH_OPT="-Wl,-rpath,"
3845                 else
3846                         LD_RPATH_OPT="-rpath "
3847                 fi
3848                 ;;
3849         (linux*|gnu*|k*bsd*-gnu|freebsd*)
3850                 LD_RPATH_OPT="-Wl,-rpath,"
3851                 ;;
3852         (openbsd[[2-9]].*|mirbsd*)
3853                 LD_RPATH_OPT="-Wl,-rpath,"
3854                 ;;
3855         (dragonfly*)
3856                 LD_RPATH_OPT="-rpath "
3857                 ;;
3858         (netbsd*)
3859                 LD_RPATH_OPT="-Wl,-rpath,"
3860                 ;;
3861         (osf*|mls+*)
3862                 LD_RPATH_OPT="-rpath "
3863                 ;;
3864         (solaris2*)
3865                 LD_RPATH_OPT="-R"
3866                 ;;
3867         (*)
3868                 ;;
3869         esac
3870         AC_MSG_RESULT($LD_RPATH_OPT)
3871
3872         case "x$LD_RPATH_OPT" in
3873         (x-R*)
3874                 AC_MSG_CHECKING(if we need a space after rpath option)
3875                 cf_save_LIBS="$LIBS"
3876                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
3877                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
3878                 LIBS="$cf_save_LIBS"
3879                 AC_MSG_RESULT($cf_rpath_space)
3880                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
3881                 ;;
3882         esac
3883 fi
3884 ])dnl
3885 dnl ---------------------------------------------------------------------------
3886 dnl CF_LD_SEARCHPATH version: 2 updated: 2019/09/26 20:34:14
3887 dnl ----------------
3888 dnl Try to obtain the linker's search-path, for use in scripts.
3889 dnl
3890 dnl Ignore LD_LIBRARY_PATH, etc.
3891 AC_DEFUN([CF_LD_SEARCHPATH],[
3892 AC_CACHE_CHECK(for linker search path,cf_cv_ld_searchpath,[
3893
3894 if test "$cross_compiling" != yes ; then
3895
3896 # GNU binutils' ld does not involve permissions which may stop ldconfig.
3897 cf_pathlist=`ld --verbose 2>/dev/null | grep SEARCH_DIR | sed -e 's,SEARCH_DIR[[("=]][[("=]]*,,g' -e 's/"[[)]];//gp' | sort -u`
3898
3899 # The -NX options tell newer versions of Linux ldconfig to not attempt to
3900 # update the cache, which makes it run faster.
3901 test -z "$cf_pathlist" && \
3902         cf_pathlist=`ldconfig -NX -v 2>/dev/null | sed -e '/^[[         ]]/d' -e 's/:$//' | sort -u`
3903
3904 test -z "$cf_pathlist" &&
3905         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e '/^[[  ]]/d' -e 's/:$//p' | sort -u`
3906
3907 # This works with OpenBSD 6.5, which lists only filenames
3908 test -z "$cf_pathlist" &&
3909         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e 's,^Adding \(.*\)/.*[$],\1,p' | sort -u`
3910
3911 if test -z "$cf_pathlist"
3912 then
3913         # dyld default path with MacOS
3914         if test -f /usr/bin/otool && test "x`uname -s`" = xDarwin
3915         then
3916                 # do this to bypass check
3917                 cf_cv_ld_searchpath='$HOME/lib'
3918                 cf_pathlist="/usr/local/lib /lib /usr/lib"
3919         fi
3920 fi
3921
3922 if test -z "$cf_pathlist"
3923 then
3924         # Solaris is hardcoded
3925         if test -d /opt/SUNWspro/lib
3926         then
3927                 cf_pathlist="/opt/SUNWspro/lib /usr/ccs/lib /usr/lib"
3928         elif test -d /usr/ccs/lib
3929         then
3930                 cf_pathlist="/usr/ccs/lib /usr/lib"
3931         fi
3932 fi
3933
3934 fi
3935
3936 # If nothing else, assume it is conventional
3937 test -z "$cf_pathlist" && cf_pathlist="/usr/lib /lib"
3938
3939 # Finally, check that this is only directories
3940 for cf_path in [$]0 $cf_pathlist
3941 do
3942         if test -d "$cf_path"; then
3943                 test -n "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath="${cf_cv_ld_searchpath} "
3944                 cf_cv_ld_searchpath="${cf_cv_ld_searchpath}${cf_path}"
3945         fi
3946 done
3947
3948 # Ensure that it is nonempty
3949 test -z "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath=/usr/lib
3950 ])
3951
3952 LD_SEARCHPATH=`echo "$cf_cv_ld_searchpath"|sed -e 's/ /|/g'`
3953 AC_SUBST(LD_SEARCHPATH)
3954 ])dnl
3955 dnl ---------------------------------------------------------------------------
3956 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
3957 dnl ---------------
3958 dnl Construct a search-list of directories for a nonstandard library-file
3959 dnl
3960 dnl Parameters
3961 dnl     $1 = the variable to return as result
3962 dnl     $2 = the package name
3963 AC_DEFUN([CF_LIBRARY_PATH],
3964 [
3965 $1=
3966 cf_library_path_list=""
3967 if test -n "${LDFLAGS}${LIBS}" ; then
3968         for cf_library_path in $LDFLAGS $LIBS
3969         do
3970                 case $cf_library_path in
3971                 (-L*)
3972                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
3973                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
3974                         cf_library_path_list="$cf_library_path_list [$]$1"
3975                         ;;
3976                 esac
3977         done
3978 fi
3979
3980 CF_SUBDIR_PATH($1,$2,lib)
3981
3982 $1="$cf_library_path_list [$]$1"
3983 ])dnl
3984 dnl ---------------------------------------------------------------------------
3985 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
3986 dnl ------------------
3987 AC_DEFUN([CF_LIBTOOL_VERSION],[
3988 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
3989 then
3990         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
3991 else
3992         cf_cv_libtool_version=
3993 fi
3994 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
3995 ])dnl
3996 dnl ---------------------------------------------------------------------------
3997 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
3998 dnl -------------
3999 dnl Compute the library-prefix for the given host system
4000 dnl $1 = variable to set
4001 define([CF_LIB_PREFIX],
4002 [
4003         case $cf_cv_system_name in
4004         (OS/2*|os2*)
4005                 if test "$DFT_LWR_MODEL" = libtool; then
4006                         LIB_PREFIX='lib'
4007                 else
4008                         LIB_PREFIX=''
4009                 fi
4010                 ;;
4011         (*)     LIB_PREFIX='lib'
4012                 ;;
4013         esac
4014 ifelse($1,,,[$1=$LIB_PREFIX])
4015         AC_SUBST(LIB_PREFIX)
4016 ])dnl
4017 dnl ---------------------------------------------------------------------------
4018 dnl CF_LIB_RULES version: 88 updated: 2018/08/18 12:19:21
4019 dnl ------------
4020 dnl Append definitions and rules for the given models to the subdirectory
4021 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
4022 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
4023 dnl the corresponding makefile to list the models that we'll generate.
4024 dnl
4025 dnl For shared libraries, make a list of symbolic links to construct when
4026 dnl generating each library.  The convention used for Linux is the simplest
4027 dnl one:
4028 dnl     lib<name>.so    ->
4029 dnl     lib<name>.so.<major>    ->
4030 dnl     lib<name>.so.<maj>.<minor>
4031 dnl
4032 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
4033 AC_DEFUN([CF_LIB_RULES],
4034 [
4035 cf_prefix=$LIB_PREFIX
4036 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
4037
4038 case $cf_cv_shlib_version in
4039 (cygdll|msysdll|mingw)
4040         TINFO_NAME=$TINFO_ARG_SUFFIX
4041         TINFO_SUFFIX=.dll
4042         ;;
4043 esac
4044
4045 if test -n "$TINFO_SUFFIX" ; then
4046         case $TINFO_SUFFIX in
4047         (tw*)
4048                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
4049                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^tw'$EXTRA_SUFFIX'//'`
4050                 ;;
4051         (t*)
4052                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
4053                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^t'$EXTRA_SUFFIX'//'`
4054                 ;;
4055         (w*)
4056                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
4057                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^w'$EXTRA_SUFFIX'//'`
4058                 ;;
4059         esac
4060 fi
4061
4062 for cf_dir in $SRC_SUBDIRS
4063 do
4064         if test ! -d $srcdir/$cf_dir ; then
4065                 continue
4066         elif test -f $srcdir/$cf_dir/modules; then
4067
4068                 SHARED_LIB=
4069                 Libs_To_Make=
4070                 cf_awk_program=
4071                 if test -n "${cf_cv_abi_version}" && test "x${cf_cv_abi_version}" != "x5"
4072                 then
4073                         cf_awk_program="$cf_awk_program\
4074 /deprecated in ABI${cf_cv_abi_version}/ { next; }\
4075 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_version}\"); }\
4076 "
4077                 fi
4078
4079                 if test "x$WILDCARD_SYMS" = xno
4080                 then
4081                         cf_awk_program="$cf_awk_program\
4082 /[[     ]]_\\*;/ { skip=1; next; }\
4083 "
4084                 fi
4085
4086                 if test "x$cf_awk_program" != "x"
4087                 then
4088                         cat >>$cf_dir/Makefile <<CF_EOF
4089
4090 # Generated by CF_LIB_RULES
4091 resulting.map: $UNALTERED_SYMS
4092         $AWK 'BEGIN { skip = 1; last=""; } \
4093 $cf_awk_program \
4094 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
4095  skip = 0; last = \[$]\[$]0; } \
4096 END { print last; }' < $UNALTERED_SYMS >\[$]@
4097
4098 distclean::
4099         rm -f resulting.map
4100 CF_EOF
4101                 fi
4102
4103                 for cf_item in $cf_LIST_MODELS
4104                 do
4105                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4106                         cf_libname=$cf_dir
4107                         test "$cf_dir" = c++ && cf_libname=ncurses++
4108                         if test $cf_item = shared ; then
4109                                 if test -n "${LIB_SUFFIX}"
4110                                 then
4111                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4112                                 else
4113                                         cf_shared_suffix="$cf_suffix"
4114                                 fi
4115                                 if test "$cf_cv_do_symlinks" = yes ; then
4116                                         cf_version_name=
4117
4118                                         case "$cf_cv_shlib_version" in
4119                                         (rel)
4120                                                 cf_version_name=REL_VERSION
4121                                                 ;;
4122                                         (abi)
4123                                                 cf_version_name=ABI_VERSION
4124                                                 ;;
4125                                         esac
4126
4127                                         if test -n "$cf_version_name"
4128                                         then
4129                                                 case "$cf_cv_system_name" in
4130                                                 (darwin*)
4131                                                         # "w", etc?
4132                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
4133                                                         ;;
4134                                                 (*)
4135                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
4136                                                         ;;
4137                                                 esac
4138                                         fi
4139                                         if test -n "${USE_LIB_SUFFIX}"
4140                                         then
4141                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4142                                         else
4143                                                 cf_shared_suffix="$cf_suffix"
4144                                         fi
4145                                 fi
4146                                 # cygwin needs import library, and has unique naming convention
4147                                 # use autodetected ${cf_prefix} for import lib and static lib, but
4148                                 # use 'cyg' prefix for shared lib.
4149                                 case $cf_cv_shlib_version in
4150                                 (cygdll)
4151                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4152                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
4153                                         ;;
4154                                 (msysdll)
4155                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4156                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
4157                                         ;;
4158                                 (mingw)
4159                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4160                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
4161                                         ;;
4162                                 (*)
4163                                         cf_add_lib=
4164                                         ;;
4165                                 esac
4166                                 if test -n "$cf_add_lib"
4167                                 then
4168                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4169                                         continue
4170                                 fi
4171                         fi
4172                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
4173                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4174                 done
4175
4176                 if test $cf_dir = ncurses ; then
4177                         cf_subsets="$LIB_SUBSETS"
4178                         cf_r_parts="$cf_subsets"
4179                         cf_liblist="$Libs_To_Make"
4180
4181                         while test -n "$cf_r_parts"
4182                         do
4183                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
4184                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
4185                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
4186                                         cf_add_lib=
4187                                         case $cf_l_parts in
4188                                         (*termlib*)
4189                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
4190                                                 ;;
4191                                         (*ticlib*)
4192                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
4193                                                 ;;
4194                                         (*)
4195                                                 break
4196                                                 ;;
4197                                         esac
4198                                         if test -n "$cf_add_lib"; then
4199                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
4200                                         fi
4201                                 else
4202                                         break
4203                                 fi
4204                         done
4205                 else
4206                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
4207                 fi
4208
4209                 if test $cf_dir = c++; then
4210                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then
4211                                 cf_list=
4212                                 for cf_item in $Libs_To_Make
4213                                 do
4214                                         case $cf_item in
4215                                         (*.a)
4216                                                 ;;
4217                                         (*)
4218                                                 cf_item=`echo "$cf_item" | sed -e "s,"$cf_shared_suffix",.a,"`
4219                                                 ;;
4220                                         esac
4221                                         for cf_test in $cf_list
4222                                         do
4223                                                 if test "$cf_test" = "$cf_item"
4224                                                 then
4225                                                         cf_LIST_MODELS=`echo "$cf_LIST_MODELS" | sed -e 's/normal//'`
4226                                                         cf_item=
4227                                                         break
4228                                                 fi
4229                                         done
4230                                         test -n "$cf_item" && cf_list="$cf_list $cf_item"
4231                                 done
4232                                 Libs_To_Make="$cf_list"
4233                         fi
4234                 fi
4235
4236                 sed -e "s%@Libs_To_Make@%$Libs_To_Make%" \
4237                     -e "s%@SHARED_LIB@%$SHARED_LIB%" \
4238                         $cf_dir/Makefile >$cf_dir/Makefile.out
4239                 mv $cf_dir/Makefile.out $cf_dir/Makefile
4240
4241                 $AWK -f $srcdir/mk-0th.awk \
4242                         libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
4243                         $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4244
4245                 for cf_subset in $cf_subsets
4246                 do
4247                         cf_subdirs=
4248                         for cf_item in $cf_LIST_MODELS
4249                         do
4250
4251                         echo "Appending rules for ${cf_item} model (${cf_dir}: ${cf_subset})"
4252                         CF_UPPER(cf_ITEM,$cf_item)
4253
4254                         CXX_MODEL=$cf_ITEM
4255                         if test "$CXX_MODEL" = SHARED; then
4256                                 case $cf_cv_shlib_version in
4257                                 (cygdll|msysdll|mingw)
4258                                         test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
4259                                         with_shared_cxx=yes
4260                                         ;;
4261                                 (*)
4262                                         test "x$with_shared_cxx" = xno && CXX_MODEL=NORMAL
4263                                         ;;
4264                                 esac
4265                         fi
4266
4267                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4268                         CF_OBJ_SUBDIR($cf_item,cf_subdir)
4269
4270                         # Test for case where we build libtinfo with a different name.
4271                         cf_libname=$cf_dir
4272                         if test $cf_dir = ncurses ; then
4273                                 case $cf_subset in
4274                                 (*base*)
4275                                         cf_libname=${cf_libname}$USE_LIB_SUFFIX
4276                                         ;;
4277                                 (*termlib*)
4278                                         cf_libname=$TINFO_LIB_SUFFIX
4279                                         ;;
4280                                 (ticlib*)
4281                                         cf_libname=$TICS_LIB_SUFFIX
4282                                         ;;
4283                                 esac
4284                         elif test $cf_dir = c++ ; then
4285                                 cf_libname=ncurses++$USE_LIB_SUFFIX
4286                         else
4287                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
4288                         fi
4289                         if test -n "${USE_ARG_SUFFIX}" ; then
4290                                 # undo $USE_LIB_SUFFIX add-on in CF_LIB_SUFFIX
4291                                 cf_suffix=`echo $cf_suffix |sed -e "s%^${USE_LIB_SUFFIX}%%"`
4292                         fi
4293
4294                         # These dependencies really are for development, not
4295                         # builds, but they are useful in porting, too.
4296                         cf_depend="../include/ncurses_cfg.h"
4297                         if test "$srcdir" = "."; then
4298                                 cf_reldir="."
4299                         else
4300                                 cf_reldir="\${srcdir}"
4301                         fi
4302
4303                         if test -f $srcdir/$cf_dir/$cf_dir.priv.h; then
4304                                 cf_depend="$cf_depend $cf_reldir/$cf_dir.priv.h"
4305                         elif test -f $srcdir/$cf_dir/curses.priv.h; then
4306                                 cf_depend="$cf_depend $cf_reldir/curses.priv.h"
4307                         fi
4308
4309                         cf_dir_suffix=
4310                         old_cf_suffix="$cf_suffix"
4311                         if test "$cf_cv_shlib_version_infix" = yes ; then
4312                         if test -n "$USE_LIB_SUFFIX" ; then
4313                                 case $USE_LIB_SUFFIX in
4314                                 (tw*)
4315                                         cf_libname=`echo $cf_libname | sed 's/tw'$EXTRA_SUFFIX'$//'`
4316                                         cf_suffix=`echo $cf_suffix | sed 's/^tw'$EXTRA_SUFFIX'//'`
4317                                         cf_dir_suffix=tw$EXTRA_SUFFIX
4318                                         ;;
4319                                 (t*)
4320                                         cf_libname=`echo $cf_libname | sed 's/t'$EXTRA_SUFFIX'$//'`
4321                                         cf_suffix=`echo $cf_suffix | sed 's/^t'$EXTRA_SUFFIX'//'`
4322                                         cf_dir_suffix=t$EXTRA_SUFFIX
4323                                         ;;
4324                                 (w*)
4325                                         cf_libname=`echo $cf_libname | sed 's/w'$EXTRA_SUFFIX'$//'`
4326                                         cf_suffix=`echo $cf_suffix | sed 's/^w'$EXTRA_SUFFIX'//'`
4327                                         cf_dir_suffix=w$EXTRA_SUFFIX
4328                                         ;;
4329                                 (*)
4330                                         cf_libname=`echo $cf_libname | sed 's/'$EXTRA_SUFFIX'$//'`
4331                                         cf_suffix=`echo $cf_suffix | sed 's/^'$EXTRA_SUFFIX'//'`
4332                                         cf_dir_suffix=$EXTRA_SUFFIX
4333                                         ;;
4334                                 esac
4335                         fi
4336                         fi
4337
4338                         $AWK -f $srcdir/mk-1st.awk \
4339                                 name=${cf_libname}${cf_dir_suffix} \
4340                                 traces=$LIB_TRACING \
4341                                 MODEL=$cf_ITEM \
4342                                 CXX_MODEL=$CXX_MODEL \
4343                                 model=$cf_subdir \
4344                                 prefix=$cf_prefix \
4345                                 suffix=$cf_suffix \
4346                                 subset=$cf_subset \
4347                                 driver=$cf_cv_term_driver \
4348                                 SymLink="$LN_S" \
4349                                 TermlibRoot=$TINFO_NAME \
4350                                 TermlibSuffix=$TINFO_SUFFIX \
4351                                 ShlibVer=$cf_cv_shlib_version \
4352                                 ShlibVerInfix=$cf_cv_shlib_version_infix \
4353                                 ReLink=${cf_cv_do_relink:-no} \
4354                                 ReRanlib=${cf_cv_do_reranlib:-yes} \
4355                                 DoLinks=$cf_cv_do_symlinks \
4356                                 rmSoLocs=$cf_cv_rm_so_locs \
4357                                 ldconfig="$LDCONFIG" \
4358                                 overwrite=$WITH_OVERWRITE \
4359                                 depend="$cf_depend" \
4360                                 host="$host" \
4361                                 libtool_version="$LIBTOOL_VERSION" \
4362                                 $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4363
4364                         cf_suffix="$old_cf_suffix"
4365
4366                         for cf_subdir2 in $cf_subdirs lib
4367                         do
4368                                 test $cf_subdir = $cf_subdir2 && break
4369                         done
4370                         test "${cf_subset}.${cf_subdir2}" != "${cf_subset}.${cf_subdir}" && \
4371                         $AWK -f $srcdir/mk-2nd.awk \
4372                                 name=$cf_dir \
4373                                 traces=$LIB_TRACING \
4374                                 MODEL=$cf_ITEM \
4375                                 model=$cf_subdir \
4376                                 subset=$cf_subset \
4377                                 srcdir=$srcdir \
4378                                 echo=$WITH_ECHO \
4379                                 crenames=$cf_cv_prog_CC_c_o \
4380                                 cxxrenames=$cf_cv_prog_CXX_c_o \
4381                                 $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4382                         cf_subdirs="$cf_subdirs $cf_subdir"
4383                         done
4384                 done
4385         fi
4386
4387         echo '  cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@' >>Makefile
4388 done
4389
4390 for cf_dir in $SRC_SUBDIRS
4391 do
4392         if test ! -d $srcdir/$cf_dir ; then
4393                 continue
4394         fi
4395
4396         if test -f $cf_dir/Makefile ; then
4397                 case "$cf_dir" in
4398                 (Ada95)
4399                         echo 'libs \' >> Makefile
4400                         echo 'install.libs \' >> Makefile
4401                         echo 'uninstall.libs ::' >> Makefile
4402                         echo '  cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@' >> Makefile
4403                         ;;
4404                 esac
4405         fi
4406
4407         if test -f $srcdir/$cf_dir/modules; then
4408                 echo >> Makefile
4409                 if test -f $srcdir/$cf_dir/headers; then
4410 cat >> Makefile <<CF_EOF
4411 install.includes \\
4412 uninstall.includes \\
4413 CF_EOF
4414                 fi
4415 if test "$cf_dir" != "c++" ; then
4416 echo 'lint \' >> Makefile
4417 fi
4418 cat >> Makefile <<CF_EOF
4419 libs \\
4420 lintlib \\
4421 install.libs \\
4422 uninstall.libs \\
4423 install.$cf_dir \\
4424 uninstall.$cf_dir ::
4425         cd $cf_dir && \${MAKE} \${TOP_MFLAGS} \[$]@
4426 CF_EOF
4427         elif test -f $srcdir/$cf_dir/headers; then
4428 cat >> Makefile <<CF_EOF
4429
4430 libs \\
4431 install.libs \\
4432 uninstall.libs \\
4433 install.includes \\
4434 uninstall.includes ::
4435         cd $cf_dir && \${MAKE} \${TOP_MFLAGS} \[$]@
4436 CF_EOF
4437 fi
4438 done
4439
4440 if test "x$cf_with_db_install" = xyes; then
4441 cat >> Makefile <<CF_EOF
4442
4443 install.libs uninstall.libs \\
4444 install.data uninstall.data ::
4445 $MAKE_TERMINFO  cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@
4446 CF_EOF
4447 else
4448 cat >> Makefile <<CF_EOF
4449
4450 install.libs uninstall.libs ::
4451         cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@
4452 CF_EOF
4453 fi
4454
4455 if test "x$cf_with_manpages" = xyes; then
4456 cat >> Makefile <<CF_EOF
4457
4458 install.man \\
4459 uninstall.man ::
4460         cd man && \${MAKE} \${TOP_MFLAGS} \[$]@
4461 CF_EOF
4462 fi
4463
4464 cat >> Makefile <<CF_EOF
4465
4466 distclean ::
4467         rm -f config.cache config.log config.status Makefile include/ncurses_cfg.h
4468         rm -f headers.sh headers.sed mk_shared_lib.sh
4469         rm -f edit_man.* man_alias.*
4470         rm -rf \${DIRS_TO_MAKE}
4471 CF_EOF
4472
4473 # Special case: tack's manpage lives in its own directory.
4474 if test "x$cf_with_manpages" = xyes; then
4475 if test "x$cf_with_tack" = "xyes"; then
4476 cat >> Makefile <<CF_EOF
4477
4478 install.man \\
4479 uninstall.man ::
4480         cd tack && \${MAKE} \${TOP_MFLAGS} \[$]@
4481 CF_EOF
4482 fi
4483 fi
4484
4485 dnl If we're installing into a subdirectory of /usr/include, etc., we should
4486 dnl prepend the subdirectory's name to the "#include" paths.  It won't hurt
4487 dnl anything, and will make it more standardized.  It's awkward to decide this
4488 dnl at configuration because of quoting, so we'll simply make all headers
4489 dnl installed via a script that can do the right thing.
4490
4491 rm -f headers.sed headers.sh
4492
4493 dnl ( generating this script makes the makefiles a little tidier :-)
4494 echo creating headers.sh
4495 cat >headers.sh <<CF_EOF
4496 #! $SHELL
4497 # This shell script is generated by the 'configure' script.  It is invoked in a
4498 # subdirectory of the build tree.  It generates a sed-script in the parent
4499 # directory that is used to adjust includes for header files that reside in a
4500 # subdirectory of /usr/include, etc.
4501 PRG=""
4502 while test \[$]# != 3
4503 do
4504 PRG="\$PRG \[$]1"; shift
4505 done
4506 DST=\[$]1
4507 REF=\[$]2
4508 SRC=\[$]3
4509 TMPSRC=\${TMPDIR:-/tmp}/\`basename \$SRC\`\$\$
4510 TMPSED=\${TMPDIR:-/tmp}/headers.sed\$\$
4511 echo installing \$SRC in \$DST
4512 CF_EOF
4513
4514 if test $WITH_CURSES_H = yes; then
4515         cat >>headers.sh <<CF_EOF
4516 case \$DST in
4517 (/*/include/*)
4518         END=\`basename \$DST\`
4519         for i in \`cat \$REF/../*/headers |fgrep -v "#"\`
4520         do
4521                 NAME=\`basename \$i\`
4522                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
4523         done
4524         ;;
4525 (*)
4526         echo "" >> \$TMPSED
4527         ;;
4528 esac
4529 CF_EOF
4530
4531 else
4532         cat >>headers.sh <<CF_EOF
4533 case \$DST in
4534 (/*/include/*)
4535         END=\`basename \$DST\`
4536         for i in \`cat \$REF/../*/headers |fgrep -v "#"\`
4537         do
4538                 NAME=\`basename \$i\`
4539                 if test "\$NAME" = "curses.h"
4540                 then
4541                         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
4542                         NAME=ncurses.h
4543                 fi
4544                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
4545         done
4546         ;;
4547 (*)
4548         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
4549         ;;
4550 esac
4551 CF_EOF
4552 fi
4553 cat >>headers.sh <<CF_EOF
4554 rm -f \$TMPSRC
4555 sed -f \$TMPSED \$SRC > \$TMPSRC
4556 NAME=\`basename \$SRC\`
4557 CF_EOF
4558 if test $WITH_CURSES_H != yes; then
4559         cat >>headers.sh <<CF_EOF
4560 test "\$NAME" = "curses.h" && NAME=ncurses.h
4561 CF_EOF
4562 fi
4563 cat >>headers.sh <<CF_EOF
4564 # Just in case someone gzip'd manpages, remove the conflicting copy.
4565 test -f \$DST/\$NAME.gz && rm -f \$DST/\$NAME.gz
4566
4567 eval \$PRG \$TMPSRC \$DST/\$NAME
4568 rm -f \$TMPSRC \$TMPSED
4569 CF_EOF
4570
4571 chmod 0755 headers.sh
4572
4573 for cf_dir in $SRC_SUBDIRS
4574 do
4575         if test ! -d $srcdir/$cf_dir ; then
4576                 continue
4577         fi
4578
4579         if test -f $srcdir/$cf_dir/headers; then
4580                 $AWK -f $srcdir/mk-hdr.awk \
4581                         subset="$LIB_SUBSETS" \
4582                         compat="$WITH_CURSES_H" \
4583                         $srcdir/$cf_dir/headers >>$cf_dir/Makefile
4584         fi
4585
4586         if test -f $srcdir/$cf_dir/modules; then
4587                 if test "$cf_dir" != "c++" ; then
4588                         cat >>$cf_dir/Makefile <<"CF_EOF"
4589 depend : ${AUTO_SRC}
4590         makedepend -- ${CPPFLAGS} -- ${C_SRC}
4591
4592 # DO NOT DELETE THIS LINE -- make depend depends on it.
4593 CF_EOF
4594                 fi
4595         fi
4596 done
4597 AC_SUBST(Libs_To_Make)
4598 ])dnl
4599 dnl ---------------------------------------------------------------------------
4600 dnl CF_LIB_SONAME version: 6 updated: 2017/01/21 11:06:25
4601 dnl -------------
4602 dnl Find the and soname for the given shared library.  Set the cache variable
4603 dnl cf_cv_$3_soname to this, unless it is not found.  Then set the cache
4604 dnl variable to "unknown".
4605 dnl
4606 dnl $1 = headers
4607 dnl $2 = code
4608 dnl $3 = library name
4609 AC_DEFUN([CF_LIB_SONAME],
4610 [
4611 AC_CACHE_CHECK(for soname of $3 library,cf_cv_$3_soname,[
4612
4613 cf_cv_$3_soname=unknown
4614 if test "$cross_compiling" != yes ; then
4615 cat >conftest.$ac_ext <<CF_EOF
4616 $1
4617 int main(void)
4618 {
4619 $2
4620         ${cf_cv_main_return:-return}(0);
4621 }
4622 CF_EOF
4623 cf_save_LIBS="$LIBS"
4624         CF_ADD_LIB($3)
4625         if AC_TRY_EVAL(ac_compile) ; then
4626                 if AC_TRY_EVAL(ac_link) ; then
4627                         cf_cv_$3_soname=`ldd conftest$ac_exeext 2>/dev/null | sed -e 's,^.*/,,' -e 's, .*$,,' | fgrep lib$3.`
4628                         test -z "$cf_cv_$3_soname" && cf_cv_$3_soname=unknown
4629                 fi
4630         fi
4631 rm -rf conftest*
4632 LIBS="$cf_save_LIBS"
4633 fi
4634 ])
4635 ])
4636 dnl ---------------------------------------------------------------------------
4637 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
4638 dnl -------------
4639 dnl Compute the library file-suffix from the given model name
4640 dnl $1 = model name
4641 dnl $2 = variable to set (the nominal library suffix)
4642 dnl $3 = dependency variable to set (actual filename)
4643 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
4644 AC_DEFUN([CF_LIB_SUFFIX],
4645 [
4646         case X$1 in
4647         (Xlibtool)
4648                 $2='.la'
4649                 $3=[$]$2
4650                 ;;
4651         (Xdebug)
4652                 $2='_g.a'
4653                 $3=[$]$2
4654                 ;;
4655         (Xprofile)
4656                 $2='_p.a'
4657                 $3=[$]$2
4658                 ;;
4659         (Xshared)
4660                 case $cf_cv_system_name in
4661                 (aix[[5-7]]*)
4662                         $2='.so'
4663                         $3=[$]$2
4664                         ;;
4665                 (cygwin*|msys*|mingw*)
4666                         $2='.dll'
4667                         $3='.dll.a'
4668                         ;;
4669                 (darwin*)
4670                         $2='.dylib'
4671                         $3=[$]$2
4672                         ;;
4673                 (hpux*)
4674                         case $target in
4675                         (ia64*)
4676                                 $2='.so'
4677                                 $3=[$]$2
4678                                 ;;
4679                         (*)
4680                                 $2='.sl'
4681                                 $3=[$]$2
4682                                 ;;
4683                         esac
4684                         ;;
4685                 (*)
4686                         $2='.so'
4687                         $3=[$]$2
4688                         ;;
4689                 esac
4690                 ;;
4691         (*)
4692                 $2='.a'
4693                 $3=[$]$2
4694                 ;;
4695         esac
4696         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
4697         then
4698                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
4699                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
4700         fi
4701 ])dnl
4702 dnl ---------------------------------------------------------------------------
4703 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
4704 dnl -----------
4705 dnl Compute the string to append to -library from the given model name
4706 dnl $1 = model name
4707 dnl $2 = variable to set
4708 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
4709 AC_DEFUN([CF_LIB_TYPE],
4710 [
4711         case $1 in
4712         (libtool) $2=''   ;;
4713         (normal)  $2=''   ;;
4714         (debug)   $2='_g' ;;
4715         (profile) $2='_p' ;;
4716         (shared)  $2=''   ;;
4717         esac
4718         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
4719 ])dnl
4720 dnl ---------------------------------------------------------------------------
4721 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
4722 dnl ----------------
4723 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
4724 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
4725 dnl have to provide wrappers for global tables to ensure they're linked
4726 dnl properly.
4727 AC_DEFUN([CF_LINK_DATAONLY],
4728 [
4729 AC_MSG_CHECKING([if data-only library module links])
4730 AC_CACHE_VAL(cf_cv_link_dataonly,[
4731         rm -f conftest.a
4732         cat >conftest.$ac_ext <<EOF
4733 #line __oline__ "configure"
4734 int     testdata[[3]] = { 123, 456, 789 };
4735 EOF
4736         if AC_TRY_EVAL(ac_compile) ; then
4737                 mv conftest.o data.o && \
4738                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
4739         fi
4740         rm -f conftest.$ac_ext data.o
4741         cat >conftest.$ac_ext <<EOF
4742 #line __oline__ "configure"
4743 int     testfunc(void)
4744 {
4745 #if defined(NeXT)
4746         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
4747 #else
4748         extern int testdata[[3]];
4749         return testdata[[0]] == 123
4750            &&  testdata[[1]] == 456
4751            &&  testdata[[2]] == 789;
4752 #endif
4753 }
4754 EOF
4755         if AC_TRY_EVAL(ac_compile); then
4756                 mv conftest.o func.o && \
4757                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
4758         fi
4759         rm -f conftest.$ac_ext func.o
4760         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
4761         cf_saveLIBS="$LIBS"
4762         LIBS="conftest.a $LIBS"
4763         AC_TRY_RUN([
4764         int main(void)
4765         {
4766                 extern int testfunc();
4767                 ${cf_cv_main_return:-return} (!testfunc());
4768         }
4769         ],
4770         [cf_cv_link_dataonly=yes],
4771         [cf_cv_link_dataonly=no],
4772         [cf_cv_link_dataonly=unknown])
4773         LIBS="$cf_saveLIBS"
4774         ])
4775 AC_MSG_RESULT($cf_cv_link_dataonly)
4776
4777 if test "$cf_cv_link_dataonly" = no ; then
4778         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
4779         BROKEN_LINKER=1
4780 fi
4781 AC_SUBST(BROKEN_LINKER)
4782
4783 ])dnl
4784 dnl ---------------------------------------------------------------------------
4785 dnl CF_LINK_FUNCS version: 9 updated: 2017/01/21 11:11:02
4786 dnl -------------
4787 dnl Most Unix systems have both link and symlink, a few don't have symlink.
4788 dnl A few non-Unix systems implement symlink, but not link.
4789 dnl A few non-systems implement neither (or have nonfunctional versions).
4790 AC_DEFUN([CF_LINK_FUNCS],
4791 [
4792 AC_CHECK_HEADERS( \
4793 unistd.h \
4794 )
4795 AC_CHECK_FUNCS( \
4796         remove \
4797         unlink )
4798
4799 if test "$cross_compiling" = yes ; then
4800         AC_CHECK_FUNCS( \
4801                 link \
4802                 symlink )
4803 else
4804         AC_CACHE_CHECK(if link/symlink functions work,cf_cv_link_funcs,[
4805                 cf_cv_link_funcs=
4806                 for cf_func in link symlink ; do
4807                         AC_TRY_RUN([
4808 #include <sys/types.h>
4809 #include <sys/stat.h>
4810 #ifdef HAVE_UNISTD_H
4811 #include <unistd.h>
4812 #endif
4813 int main(void)
4814 {
4815         int fail = 0;
4816         char *src = "config.log";
4817         char *dst = "conftest.chk";
4818         struct stat src_sb;
4819         struct stat dst_sb;
4820
4821         stat(src, &src_sb);
4822         fail = ($cf_func("config.log", "conftest.chk") < 0)
4823             || (stat(dst, &dst_sb) < 0)
4824             || (dst_sb.st_mtime != src_sb.st_mtime);
4825 #ifdef HAVE_UNLINK
4826         unlink(dst);
4827 #else
4828         remove(dst);
4829 #endif
4830         ${cf_cv_main_return:-return} (fail);
4831 }
4832                         ],[
4833                         cf_cv_link_funcs="$cf_cv_link_funcs $cf_func"
4834                         eval 'ac_cv_func_'$cf_func'=yes'],[
4835                         eval 'ac_cv_func_'$cf_func'=no'],[
4836                         eval 'ac_cv_func_'$cf_func'=error'])
4837                 done
4838                 test -z "$cf_cv_link_funcs" && cf_cv_link_funcs=no
4839         ])
4840         test "$ac_cv_func_link"    = yes && AC_DEFINE(HAVE_LINK,1,[Define to 1 if we have link() function])
4841         test "$ac_cv_func_symlink" = yes && AC_DEFINE(HAVE_SYMLINK,1,[Define to 1 if we have symlink() function])
4842 fi
4843 ])dnl
4844 dnl ---------------------------------------------------------------------------
4845 dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
4846 dnl ------------
4847 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
4848 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
4849 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
4850 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
4851 AC_DEFUN([CF_MAKEFLAGS],
4852 [
4853 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
4854         cf_cv_makeflags=''
4855         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
4856         do
4857                 cat >cf_makeflags.tmp <<CF_EOF
4858 SHELL = $SHELL
4859 all :
4860         @ echo '.$cf_option'
4861 CF_EOF
4862                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[   ]]*$,,'`
4863                 case "$cf_result" in
4864                 (.*k|.*kw)
4865                         cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
4866                         case "$cf_result" in
4867                         (.*CC=*)        cf_cv_makeflags=
4868                                 ;;
4869                         (*)     cf_cv_makeflags=$cf_option
4870                                 ;;
4871                         esac
4872                         break
4873                         ;;
4874                 (.-)
4875                         ;;
4876                 (*)
4877                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
4878                         ;;
4879                 esac
4880         done
4881         rm -f cf_makeflags.tmp
4882 ])
4883
4884 AC_SUBST(cf_cv_makeflags)
4885 ])dnl
4886 dnl ---------------------------------------------------------------------------
4887 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
4888 dnl ------------
4889 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
4890 dnl a monocase filesystem.
4891 AC_DEFUN([CF_MAKE_TAGS],[
4892 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
4893
4894 AC_CHECK_PROGS(CTAGS, exctags ctags)
4895 AC_CHECK_PROGS(ETAGS, exetags etags)
4896
4897 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
4898
4899 if test "$cf_cv_mixedcase" = yes ; then
4900         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
4901 else
4902         MAKE_UPPER_TAGS=no
4903 fi
4904
4905 if test "$MAKE_UPPER_TAGS" = yes ; then
4906         MAKE_UPPER_TAGS=
4907 else
4908         MAKE_UPPER_TAGS="#"
4909 fi
4910
4911 if test "$MAKE_LOWER_TAGS" = yes ; then
4912         MAKE_LOWER_TAGS=
4913 else
4914         MAKE_LOWER_TAGS="#"
4915 fi
4916
4917 AC_SUBST(CTAGS)
4918 AC_SUBST(ETAGS)
4919
4920 AC_SUBST(MAKE_UPPER_TAGS)
4921 AC_SUBST(MAKE_LOWER_TAGS)
4922 ])dnl
4923 dnl ---------------------------------------------------------------------------
4924 dnl CF_MANPAGE_FORMAT version: 11 updated: 2015/04/18 08:56:57
4925 dnl -----------------
4926 dnl Option to allow user to override automatic configuration of manpage format.
4927 dnl There are several special cases:
4928 dnl
4929 dnl     gzip - man checks for, can display gzip'd files
4930 dnl     compress - man checks for, can display compressed files
4931 dnl     BSDI - files in the cat-directories are suffixed ".0"
4932 dnl     formatted - installer should format (put files in cat-directory)
4933 dnl     catonly - installer should only format, e.g., for a turnkey system.
4934 dnl
4935 dnl There are other configurations which this macro does not test, e.g., HPUX's
4936 dnl compressed manpages (but uncompressed manpages are fine, and HPUX's naming
4937 dnl convention would not match our use).
4938 AC_DEFUN([CF_MANPAGE_FORMAT],
4939 [
4940 AC_REQUIRE([CF_PATHSEP])
4941 AC_MSG_CHECKING(format of man-pages)
4942
4943 AC_ARG_WITH(manpage-format,
4944         [  --with-manpage-format   specify manpage-format: gzip/compress/BSDI/normal and
4945                           optionally formatted/catonly, e.g., gzip,formatted],
4946         [MANPAGE_FORMAT=$withval],
4947         [MANPAGE_FORMAT=unknown])
4948
4949 test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=unknown
4950 MANPAGE_FORMAT=`echo "$MANPAGE_FORMAT" | sed -e 's/,/ /g'`
4951
4952 cf_unknown=
4953
4954 case $MANPAGE_FORMAT in
4955 (unknown)
4956         if test -z "$MANPATH" ; then
4957                 MANPATH="/usr/man:/usr/share/man"
4958         fi
4959
4960         # look for the 'date' man-page (it's most likely to be installed!)
4961         MANPAGE_FORMAT=
4962         cf_preform=no
4963         cf_catonly=yes
4964         cf_example=date
4965
4966         IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
4967         for cf_dir in $MANPATH; do
4968                 test -z "$cf_dir" && cf_dir=/usr/man
4969                 for cf_name in $cf_dir/man*/$cf_example.[[01]]* $cf_dir/cat*/$cf_example.[[01]]* $cf_dir/man*/$cf_example $cf_dir/cat*/$cf_example
4970                 do
4971                         cf_test=`echo $cf_name | sed -e 's/*//'`
4972                         if test "x$cf_test" = "x$cf_name" ; then
4973
4974                                 case "$cf_name" in
4975                                 (*.gz) MANPAGE_FORMAT="$MANPAGE_FORMAT gzip";;
4976                                 (*.Z)  MANPAGE_FORMAT="$MANPAGE_FORMAT compress";;
4977                                 (*.0)  MANPAGE_FORMAT="$MANPAGE_FORMAT BSDI";;
4978                                 (*)    MANPAGE_FORMAT="$MANPAGE_FORMAT normal";;
4979                                 esac
4980
4981                                 case "$cf_name" in
4982                                 ($cf_dir/man*)
4983                                         cf_catonly=no
4984                                         ;;
4985                                 ($cf_dir/cat*)
4986                                         cf_preform=yes
4987                                         ;;
4988                                 esac
4989                                 break
4990                         fi
4991
4992                         # if we found a match in either man* or cat*, stop looking
4993                         if test -n "$MANPAGE_FORMAT" ; then
4994                                 cf_found=no
4995                                 test "$cf_preform" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT formatted"
4996                                 test "$cf_catonly" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT catonly"
4997                                 case "$cf_name" in
4998                                 ($cf_dir/cat*)
4999                                         cf_found=yes
5000                                         ;;
5001                                 esac
5002                                 test $cf_found=yes && break
5003                         fi
5004                 done
5005                 # only check the first directory in $MANPATH where we find manpages
5006                 if test -n "$MANPAGE_FORMAT" ; then
5007                         break
5008                 fi
5009         done
5010         # if we did not find the example, just assume it is normal
5011         test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=normal
5012         IFS="$ac_save_ifs"
5013         ;;
5014 (*)
5015         for cf_option in $MANPAGE_FORMAT; do
5016         case $cf_option in
5017         (gzip|compress|BSDI|normal|formatted|catonly)
5018                 ;;
5019         (*)
5020                 cf_unknown="$cf_unknown $cf_option"
5021                 ;;
5022         esac
5023         done
5024         ;;
5025 esac
5026
5027 AC_MSG_RESULT($MANPAGE_FORMAT)
5028 if test -n "$cf_unknown" ; then
5029         AC_MSG_WARN(Unexpected manpage-format $cf_unknown)
5030 fi
5031 ])dnl
5032 dnl ---------------------------------------------------------------------------
5033 dnl CF_MANPAGE_RENAMES version: 10 updated: 2015/08/05 20:44:28
5034 dnl ------------------
5035 dnl The Debian people have their own naming convention for manpages.  This
5036 dnl option lets us override the name of the file containing renaming, or
5037 dnl disable it altogether.
5038 AC_DEFUN([CF_MANPAGE_RENAMES],
5039 [
5040 AC_MSG_CHECKING(for manpage renaming)
5041
5042 AC_ARG_WITH(manpage-renames,
5043         [  --with-manpage-renames  specify manpage-renaming],
5044         [MANPAGE_RENAMES=$withval],
5045         [MANPAGE_RENAMES=yes])
5046
5047 case ".$MANPAGE_RENAMES" in
5048 (.no)
5049         ;;
5050 (.|.yes)
5051         # Debian 'man' program?
5052         if test -f /etc/debian_version ; then
5053                 MANPAGE_RENAMES=`cd $srcdir && pwd`/man/man_db.renames
5054         else
5055                 MANPAGE_RENAMES=no
5056         fi
5057         ;;
5058 esac
5059
5060 if test "$MANPAGE_RENAMES" != no ; then
5061         if test -f $srcdir/man/$MANPAGE_RENAMES ; then
5062                 MANPAGE_RENAMES=`cd $srcdir/man && pwd`/$MANPAGE_RENAMES
5063         elif test ! -f $MANPAGE_RENAMES ; then
5064                 AC_MSG_ERROR(not a filename: $MANPAGE_RENAMES)
5065         fi
5066
5067         test ! -d man && mkdir man
5068
5069         # Construct a sed-script to perform renaming within man-pages
5070         if test -n "$MANPAGE_RENAMES" ; then
5071                 test ! -d man && mkdir man
5072                 $SHELL $srcdir/man/make_sed.sh $MANPAGE_RENAMES >./edit_man.sed
5073         fi
5074 fi
5075
5076 AC_MSG_RESULT($MANPAGE_RENAMES)
5077 AC_SUBST(MANPAGE_RENAMES)
5078 ])dnl
5079 dnl ---------------------------------------------------------------------------
5080 dnl CF_MANPAGE_SYMLINKS version: 6 updated: 2015/04/17 21:13:04
5081 dnl -------------------
5082 dnl Some people expect each tool to make all aliases for manpages in the
5083 dnl man-directory.  This accommodates the older, less-capable implementations
5084 dnl of 'man', and is optional.
5085 AC_DEFUN([CF_MANPAGE_SYMLINKS],
5086 [
5087 AC_MSG_CHECKING(if manpage aliases will be installed)
5088
5089 AC_ARG_WITH(manpage-aliases,
5090         [  --with-manpage-aliases  specify manpage-aliases using .so],
5091         [MANPAGE_ALIASES=$withval],
5092         [MANPAGE_ALIASES=yes])
5093
5094 AC_MSG_RESULT($MANPAGE_ALIASES)
5095
5096 case "x$LN_S" in
5097 (xln*)
5098         cf_use_symlinks=yes
5099         ;;
5100 (*)
5101         cf_use_symlinks=no
5102         ;;
5103 esac
5104
5105 MANPAGE_SYMLINKS=no
5106 if test "$MANPAGE_ALIASES" = yes ; then
5107 AC_MSG_CHECKING(if manpage symlinks should be used)
5108
5109 AC_ARG_WITH(manpage-symlinks,
5110         [  --with-manpage-symlinks specify manpage-aliases using symlinks],
5111         [MANPAGE_SYMLINKS=$withval],
5112         [MANPAGE_SYMLINKS=$cf_use_symlinks])
5113
5114 if test "$$cf_use_symlinks" = no; then
5115 if test "$MANPAGE_SYMLINKS" = yes ; then
5116         AC_MSG_WARN(cannot make symlinks, will use .so files)
5117         MANPAGE_SYMLINKS=no
5118 fi
5119 fi
5120
5121 AC_MSG_RESULT($MANPAGE_SYMLINKS)
5122 fi
5123
5124 ])dnl
5125 dnl ---------------------------------------------------------------------------
5126 dnl CF_MANPAGE_TBL version: 3 updated: 2002/01/19 22:51:32
5127 dnl --------------
5128 dnl This option causes manpages to be run through tbl(1) to generate tables
5129 dnl correctly.
5130 AC_DEFUN([CF_MANPAGE_TBL],
5131 [
5132 AC_MSG_CHECKING(for manpage tbl)
5133
5134 AC_ARG_WITH(manpage-tbl,
5135         [  --with-manpage-tbl      specify manpage processing with tbl],
5136         [MANPAGE_TBL=$withval],
5137         [MANPAGE_TBL=no])
5138
5139 AC_MSG_RESULT($MANPAGE_TBL)
5140 ])dnl
5141 dnl ---------------------------------------------------------------------------
5142 dnl CF_MAN_PAGES version: 47 updated: 2017/08/12 07:58:51
5143 dnl ------------
5144 dnl Try to determine if the man-pages on the system are compressed, and if
5145 dnl so, what format is used.  Use this information to construct a script that
5146 dnl will install man-pages.
5147 AC_DEFUN([CF_MAN_PAGES],
5148 [
5149 CF_HELP_MESSAGE(Options to Specify How Manpages are Installed:)
5150 CF_MANPAGE_FORMAT
5151 CF_MANPAGE_RENAMES
5152 CF_MANPAGE_SYMLINKS
5153 CF_MANPAGE_TBL
5154
5155 if test "$prefix" = "NONE" ; then
5156         cf_prefix="$ac_default_prefix"
5157 else
5158         cf_prefix="$prefix"
5159 fi
5160
5161 case "$MANPAGE_FORMAT" in
5162 (*catonly*)
5163         cf_format=yes
5164         cf_inboth=no
5165         ;;
5166 (*formatted*)
5167         cf_format=yes
5168         cf_inboth=yes
5169         ;;
5170 (*)
5171         cf_format=no
5172         cf_inboth=no
5173         ;;
5174 esac
5175
5176 test ! -d man && mkdir man
5177
5178 cf_so_strip=
5179 cf_compress=
5180 case "$MANPAGE_FORMAT" in
5181 (*compress*)
5182         cf_so_strip="Z"
5183         cf_compress=compress
5184         ;;
5185 (*gzip*)
5186         cf_so_strip="gz"
5187         cf_compress=gzip
5188         ;;
5189 esac
5190
5191 cf_edit_man=./edit_man.sh
5192 cf_man_alias=`pwd`/man_alias.sed
5193
5194 cat >$cf_edit_man <<CF_EOF
5195 #! $SHELL
5196 # this script is generated by the configure-script CF_MAN_PAGES macro.
5197
5198 prefix="$cf_prefix"
5199 datarootdir="$datarootdir"
5200 datadir="$datadir"
5201
5202 NCURSES_MAJOR="$NCURSES_MAJOR"
5203 NCURSES_MINOR="$NCURSES_MINOR"
5204 NCURSES_PATCH="$NCURSES_PATCH"
5205
5206 NCURSES_OSPEED="$NCURSES_OSPEED"
5207 TERMINFO="$TERMINFO"
5208
5209 INSTALL="$INSTALL"
5210 INSTALL_DATA="$INSTALL_DATA"
5211
5212 transform="$program_transform_name"
5213
5214 TMP=\${TMPDIR:=/tmp}/man\$\$
5215 trap "rm -f \$TMP" 0 1 2 3 15
5216
5217 form=\[$]1
5218 shift || exit 1
5219
5220 verb=\[$]1
5221 shift || exit 1
5222
5223 mandir=\[$]1
5224 shift || exit 1
5225
5226 srcdir=\[$]1
5227 top_srcdir=\[$]srcdir/..
5228 shift || exit 1
5229
5230 if test "\$form" = normal ; then
5231         if test "$cf_format" = yes ; then
5232         if test "$cf_inboth" = no ; then
5233                 $SHELL \[$]0 format \$verb \$mandir \$srcdir \[$]*
5234                 exit $?
5235         fi
5236         fi
5237         cf_subdir=\$mandir/man
5238         cf_tables=$MANPAGE_TBL
5239 else
5240         cf_subdir=\$mandir/cat
5241         cf_tables=yes
5242 fi
5243
5244 # process the list of source-files
5245 for i in \[$]* ; do
5246 case \$i in
5247 (*.orig|*.rej) ;;
5248 (*.[[0-9]]*)
5249         section=\`expr "\$i" : '.*\\.\\([[0-9]]\\)[[xm]]*'\`;
5250         if test \$verb = installing ; then
5251         if test ! -d \$cf_subdir\${section} ; then
5252                 mkdir -p \$cf_subdir\$section
5253         fi
5254         fi
5255
5256         # replace variables in man page
5257         if test ! -f $cf_man_alias ; then
5258 cat >>$cf_man_alias <<-CF_EOF2
5259                 s,@DATADIR@,\$datadir,g
5260                 s,@TERMINFO@,\${TERMINFO:="no default value"},g
5261                 s,@TERMINFO_DIRS@,\${TERMINFO_DIRS:="no default value"},g
5262                 s,@NCURSES_MAJOR@,\${NCURSES_MAJOR:="no default value"},g
5263                 s,@NCURSES_MINOR@,\${NCURSES_MINOR:="no default value"},g
5264                 s,@NCURSES_PATCH@,\${NCURSES_PATCH:="no default value"},g
5265                 s,@NCURSES_OSPEED@,\${NCURSES_OSPEED:="no default value"},g
5266 CF_EOF
5267         ifelse($1,,,[
5268         for cf_name in $1
5269         do
5270                 cf_NAME=`echo "$cf_name" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
5271                 cf_name=`echo $cf_name|sed "$program_transform_name"`
5272 cat >>$cf_edit_man <<-CF_EOF
5273                 s,@$cf_NAME@,$cf_name,g
5274 CF_EOF
5275         done
5276         ])
5277 cat >>$cf_edit_man <<CF_EOF
5278 CF_EOF2
5279                 echo "...made $cf_man_alias"
5280         fi
5281
5282         aliases=
5283         cf_source=\`basename \$i\`
5284         inalias=\$cf_source
5285         test ! -f \$inalias && inalias="\$srcdir/\$inalias"
5286         if test ! -f \$inalias ; then
5287                 echo .. skipped \$cf_source
5288                 continue
5289         fi
5290 CF_EOF
5291
5292 if test "$MANPAGE_ALIASES" != no ; then
5293 cat >>$cf_edit_man <<CF_EOF
5294         nCurses=ignore.3x
5295         test $with_curses_h = yes && nCurses=ncurses.3x
5296         aliases=\`sed -f \$top_srcdir/man/manlinks.sed \$inalias |sed -f $cf_man_alias | sort -u; test \$inalias = \$nCurses && echo curses\`
5297 CF_EOF
5298 fi
5299
5300 if test "$MANPAGE_RENAMES" = no ; then
5301 cat >>$cf_edit_man <<CF_EOF
5302         # perform program transformations for section 1 man pages
5303         if test \$section = 1 ; then
5304                 cf_target=\$cf_subdir\${section}/\`echo \$cf_source|sed "\${transform}"\`
5305         else
5306                 cf_target=\$cf_subdir\${section}/\$cf_source
5307         fi
5308 CF_EOF
5309 else
5310 cat >>$cf_edit_man <<CF_EOF
5311         cf_target=\`grep "^\$cf_source" $MANPAGE_RENAMES | $AWK '{print \[$]2}'\`
5312         if test -z "\$cf_target" ; then
5313                 echo '? missing rename for '\$cf_source
5314                 cf_target="\$cf_source"
5315         fi
5316         cf_target="\$cf_subdir\${section}/\${cf_target}"
5317
5318 CF_EOF
5319 fi
5320
5321 cat >>$cf_edit_man <<CF_EOF
5322         sed     -f $cf_man_alias \\
5323 CF_EOF
5324
5325 if test -f $MANPAGE_RENAMES ; then
5326 cat >>$cf_edit_man <<CF_EOF
5327                 < \$i | sed -f `pwd`/edit_man.sed >\$TMP
5328 CF_EOF
5329 else
5330 cat >>$cf_edit_man <<CF_EOF
5331                 < \$i >\$TMP
5332 CF_EOF
5333 fi
5334
5335 cat >>$cf_edit_man <<CF_EOF
5336 if test \$cf_tables = yes ; then
5337         tbl \$TMP >\$TMP.out
5338         mv \$TMP.out \$TMP
5339 fi
5340 CF_EOF
5341
5342 if test $with_overwrite != yes ; then
5343 cat >>$cf_edit_man <<CF_EOF
5344         sed -e "/\#[    ]*include/s,<curses.h,<ncurses$LIB_SUFFIX/curses.h," < \$TMP >\$TMP.out
5345         mv \$TMP.out \$TMP
5346 CF_EOF
5347 fi
5348
5349 if test $with_curses_h != yes ; then
5350 cat >>$cf_edit_man <<CF_EOF
5351         sed -e "/\#[    ]*include/s,curses.h,ncurses.h," < \$TMP >\$TMP.out
5352         mv \$TMP.out \$TMP
5353 CF_EOF
5354 fi
5355
5356 cat >>$cf_edit_man <<CF_EOF
5357         if test \$form = format ; then
5358                 nroff -man \$TMP >\$TMP.out
5359                 mv \$TMP.out \$TMP
5360         fi
5361 CF_EOF
5362
5363 if test -n "$cf_compress" ; then
5364 cat >>$cf_edit_man <<CF_EOF
5365         if test \$verb = installing ; then
5366         if ( $cf_compress -f \$TMP )
5367         then
5368                 mv \$TMP.$cf_so_strip \$TMP
5369         fi
5370         fi
5371         cf_target="\$cf_target.$cf_so_strip"
5372 CF_EOF
5373 fi
5374
5375 case "$MANPAGE_FORMAT" in
5376 (*BSDI*)
5377 cat >>$cf_edit_man <<CF_EOF
5378         if test \$form = format ; then
5379                 # BSDI installs only .0 suffixes in the cat directories
5380                 cf_target="\`echo \$cf_target|sed -e 's/\.[[1-9]]\+[[a-z]]*/.0/'\`"
5381         fi
5382 CF_EOF
5383   ;;
5384 esac
5385
5386 cat >>$cf_edit_man <<CF_EOF
5387         suffix=\`basename \$cf_target | sed -e 's%^[[^.]]*%%'\`
5388         if test \$verb = installing ; then
5389                 echo \$verb \$cf_target
5390                 \$INSTALL_DATA \$TMP \$cf_target
5391                 test -d \$cf_subdir\${section} &&
5392                 test -n "\$aliases" && (
5393                         cd \$cf_subdir\${section} && (
5394                                 cf_source=\`echo \$cf_target |sed -e 's%^.*/\([[^/]][[^/]]*/[[^/]][[^/]]*$\)%\1%'\`
5395                                 test -n "$cf_so_strip" && cf_source=\`echo \$cf_source |sed -e 's%\.$cf_so_strip\$%%'\`
5396                                 cf_target=\`basename \$cf_target\`
5397                                 for cf_alias in \$aliases
5398                                 do
5399                                         if test \$section = 1 ; then
5400                                                 cf_alias=\`echo \$cf_alias|sed "\${transform}"\`
5401                                         fi
5402
5403                                         if test "$MANPAGE_SYMLINKS" = yes ; then
5404                                                 if test -f \$cf_alias\${suffix} ; then
5405                                                         if ( cmp -s \$cf_target \$cf_alias\${suffix} )
5406                                                         then
5407                                                                 continue
5408                                                         fi
5409                                                 fi
5410                                                 echo .. \$verb alias \$cf_alias\${suffix}
5411 CF_EOF
5412 case "x$LN_S" in
5413 (*-f)
5414 cat >>$cf_edit_man <<CF_EOF
5415                                                 $LN_S \$cf_target \$cf_alias\${suffix}
5416 CF_EOF
5417         ;;
5418 (*)
5419 cat >>$cf_edit_man <<CF_EOF
5420                                                 rm -f \$cf_alias\${suffix}
5421                                                 $LN_S \$cf_target \$cf_alias\${suffix}
5422 CF_EOF
5423         ;;
5424 esac
5425 cat >>$cf_edit_man <<CF_EOF
5426                                         elif test "\$cf_target" != "\$cf_alias\${suffix}" ; then
5427                                                 echo ".so \$cf_source" >\$TMP
5428 CF_EOF
5429 if test -n "$cf_compress" ; then
5430 cat >>$cf_edit_man <<CF_EOF
5431                                                 if test -n "$cf_so_strip" ; then
5432                                                         $cf_compress -f \$TMP
5433                                                         mv \$TMP.$cf_so_strip \$TMP
5434                                                 fi
5435 CF_EOF
5436 fi
5437 cat >>$cf_edit_man <<CF_EOF
5438                                                 echo .. \$verb alias \$cf_alias\${suffix}
5439                                                 rm -f \$cf_alias\${suffix}
5440                                                 \$INSTALL_DATA \$TMP \$cf_alias\${suffix}
5441                                         fi
5442                                 done
5443                         )
5444                 )
5445         elif test \$verb = removing ; then
5446                 test -f \$cf_target && (
5447                         echo \$verb \$cf_target
5448                         rm -f \$cf_target
5449                 )
5450                 test -d \$cf_subdir\${section} &&
5451                 test -n "\$aliases" && (
5452                         cd \$cf_subdir\${section} && (
5453                                 for cf_alias in \$aliases
5454                                 do
5455                                         if test \$section = 1 ; then
5456                                                 cf_alias=\`echo \$cf_alias|sed "\${transform}"\`
5457                                         fi
5458
5459                                         echo .. \$verb alias \$cf_alias\${suffix}
5460                                         rm -f \$cf_alias\${suffix}
5461                                 done
5462                         )
5463                 )
5464         else
5465 #               echo ".hy 0"
5466                 cat \$TMP
5467         fi
5468         ;;
5469 esac
5470 done
5471
5472 if test $cf_inboth = yes ; then
5473 if test \$form != format ; then
5474         $SHELL \[$]0 format \$verb \$mandir \$srcdir \[$]*
5475 fi
5476 fi
5477
5478 exit 0
5479 CF_EOF
5480 chmod 755 $cf_edit_man
5481
5482 ])dnl
5483 dnl ---------------------------------------------------------------------------
5484 dnl CF_MATH_LIB version: 9 updated: 2017/01/21 11:06:25
5485 dnl -----------
5486 dnl Checks for libraries.  At least one UNIX system, Apple Macintosh
5487 dnl Rhapsody 5.5, does not have -lm.  We cannot use the simpler
5488 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
5489 AC_DEFUN([CF_MATH_LIB],
5490 [
5491 AC_CACHE_CHECK(if -lm needed for math functions,
5492         cf_cv_need_libm,[
5493         AC_TRY_LINK([
5494         #include <stdio.h>
5495         #include <stdlib.h>
5496         #include <math.h>
5497         ],
5498         [double x = rand(); printf("result = %g\n", ]ifelse([$2],,sin(x),$2)[)],
5499         [cf_cv_need_libm=no],
5500         [cf_cv_need_libm=yes])])
5501 if test "$cf_cv_need_libm" = yes
5502 then
5503 ifelse($1,,[
5504         CF_ADD_LIB(m)
5505 ],[$1=-lm])
5506 fi
5507 ])
5508 dnl ---------------------------------------------------------------------------
5509 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
5510 dnl ----------------------
5511 dnl Check if the file-system supports mixed-case filenames.  If we're able to
5512 dnl create a lowercase name and see it as uppercase, it doesn't support that.
5513 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
5514 [
5515 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
5516 if test "$cross_compiling" = yes ; then
5517         case $target_alias in
5518         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
5519                 cf_cv_mixedcase=no
5520                 ;;
5521         (*)
5522                 cf_cv_mixedcase=yes
5523                 ;;
5524         esac
5525 else
5526         rm -f conftest CONFTEST
5527         echo test >conftest
5528         if test -f CONFTEST ; then
5529                 cf_cv_mixedcase=no
5530         else
5531                 cf_cv_mixedcase=yes
5532         fi
5533         rm -f conftest CONFTEST
5534 fi
5535 ])
5536 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
5537 ])dnl
5538 dnl ---------------------------------------------------------------------------
5539 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
5540 dnl ----------
5541 dnl Check for a working mkstemp.  This creates two files, checks that they are
5542 dnl successfully created and distinct (AmigaOS apparently fails on the last).
5543 AC_DEFUN([CF_MKSTEMP],[
5544 AC_CHECK_HEADERS( \
5545 unistd.h \
5546 )
5547 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
5548 rm -rf conftest*
5549 AC_TRY_RUN([
5550 #include <sys/types.h>
5551 #ifdef HAVE_UNISTD_H
5552 #include <unistd.h>
5553 #endif
5554 #include <stdlib.h>
5555 #include <stdio.h>
5556 #include <string.h>
5557 #include <sys/stat.h>
5558 int main(void)
5559 {
5560         char *tmpl = "conftestXXXXXX";
5561         char name[2][80];
5562         int n;
5563         int result = 0;
5564         int fd;
5565         struct stat sb;
5566
5567         umask(077);
5568         for (n = 0; n < 2; ++n) {
5569                 strcpy(name[n], tmpl);
5570                 if ((fd = mkstemp(name[n])) >= 0) {
5571                         if (!strcmp(name[n], tmpl)
5572                          || stat(name[n], &sb) != 0
5573                          || (sb.st_mode & S_IFMT) != S_IFREG
5574                          || (sb.st_mode & 077) != 0) {
5575                                 result = 1;
5576                         }
5577                         close(fd);
5578                 }
5579         }
5580         if (result == 0
5581          && !strcmp(name[0], name[1]))
5582                 result = 1;
5583         ${cf_cv_main_return:-return}(result);
5584 }
5585 ],[cf_cv_func_mkstemp=yes
5586 ],[cf_cv_func_mkstemp=no
5587 ],[cf_cv_func_mkstemp=maybe])
5588 ])
5589 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
5590         AC_CHECK_FUNC(mkstemp)
5591 fi
5592 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
5593         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
5594 fi
5595 ])dnl
5596 dnl ---------------------------------------------------------------------------
5597 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
5598 dnl ----------
5599 dnl Write a debug message to config.log, along with the line number in the
5600 dnl configure script.
5601 AC_DEFUN([CF_MSG_LOG],[
5602 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
5603 ])dnl
5604 dnl ---------------------------------------------------------------------------
5605 dnl CF_NCURSES_ABI_6 version: 3 updated: 2015/06/06 16:10:11
5606 dnl ----------------
5607 dnl Set ncurses' ABI to 6 unless overridden by explicit configure option, and
5608 dnl warn about this.
5609 AC_DEFUN([CF_NCURSES_ABI_6],[
5610 if test "${with_abi_version+set}" != set; then
5611         case $cf_cv_rel_version in
5612         (5.*)
5613                 cf_cv_rel_version=6.0
5614                 cf_cv_abi_version=6
5615                 AC_MSG_WARN(overriding ABI version to $cf_cv_abi_version)
5616                 ;;
5617         esac
5618 fi
5619 ])dnl
5620 dnl ---------------------------------------------------------------------------
5621 dnl CF_NCURSES_WITH_ABI_VERSION version: 2 updated: 2015/12/19 17:51:52
5622 dnl ---------------------------
5623 dnl Allow ncurses's ABI to be overridden.  Generally this happens when a
5624 dnl packager has incremented the ABI past that used in the original package,
5625 dnl and wishes to keep doing this.
5626 dnl
5627 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
5628 dnl symbol.
5629 AC_DEFUN([CF_NCURSES_WITH_ABI_VERSION],[
5630 CF_WITH_ABI_VERSION($1)
5631 if test "x$cf_cv_abi_version" != "x$with_abi_version"
5632 then
5633         case $cf_cv_rel_version in
5634         (5.*)
5635                 cf_cv_rel_version=$with_abi_version.0
5636                 ;;
5637         esac
5638 fi
5639 ])dnl
5640 dnl ---------------------------------------------------------------------------
5641 dnl CF_NO_LEAKS_OPTION version: 6 updated: 2015/04/12 15:39:00
5642 dnl ------------------
5643 dnl see CF_WITH_NO_LEAKS
5644 AC_DEFUN([CF_NO_LEAKS_OPTION],[
5645 AC_MSG_CHECKING(if you want to use $1 for testing)
5646 AC_ARG_WITH($1,
5647         [$2],
5648         [AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
5649          $4
5650 ])
5651         : ${with_cflags:=-g}
5652         : ${with_no_leaks:=yes}
5653          with_$1=yes],
5654         [with_$1=])
5655 AC_MSG_RESULT(${with_$1:-no})
5656
5657 case .$with_cflags in
5658 (.*-g*)
5659         case .$CFLAGS in
5660         (.*-g*)
5661                 ;;
5662         (*)
5663                 CF_ADD_CFLAGS([-g])
5664                 ;;
5665         esac
5666         ;;
5667 esac
5668 ])dnl
5669 dnl ---------------------------------------------------------------------------
5670 dnl CF_NUMBER_SYNTAX version: 2 updated: 2015/04/17 21:13:04
5671 dnl ----------------
5672 dnl Check if the given variable is a number.  If not, report an error.
5673 dnl $1 is the variable
5674 dnl $2 is the message
5675 AC_DEFUN([CF_NUMBER_SYNTAX],[
5676 if test -n "$1" ; then
5677   case $1 in
5678   ([[0-9]]*)
5679         ;;
5680   (*)
5681         AC_MSG_ERROR($2 is not a number: $1)
5682         ;;
5683   esac
5684 else
5685   AC_MSG_ERROR($2 value is empty)
5686 fi
5687 ])dnl
5688 dnl ---------------------------------------------------------------------------
5689 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
5690 dnl -------------
5691 dnl Compute the object-directory name from the given model name
5692 AC_DEFUN([CF_OBJ_SUBDIR],
5693 [
5694         case $1 in
5695         (libtool) $2='obj_lo'  ;;
5696         (normal)  $2='objects' ;;
5697         (debug)   $2='obj_g' ;;
5698         (profile) $2='obj_p' ;;
5699         (shared)
5700                 case $cf_cv_system_name in
5701                 (cygwin|msys)
5702                         $2='objects' ;;
5703                 (*)
5704                         $2='obj_s' ;;
5705                 esac
5706         esac
5707 ])dnl
5708 dnl ---------------------------------------------------------------------------
5709 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
5710 dnl ----------
5711 dnl Provide a value for the $PATH and similar separator (or amend the value
5712 dnl as provided in autoconf 2.5x).
5713 AC_DEFUN([CF_PATHSEP],
5714 [
5715         AC_MSG_CHECKING(for PATH separator)
5716         case $cf_cv_system_name in
5717         (os2*)  PATH_SEPARATOR=';'  ;;
5718         (*)     ${PATH_SEPARATOR:=':'}  ;;
5719         esac
5720 ifelse([$1],,,[$1=$PATH_SEPARATOR])
5721         AC_SUBST(PATH_SEPARATOR)
5722         AC_MSG_RESULT($PATH_SEPARATOR)
5723 ])dnl
5724 dnl ---------------------------------------------------------------------------
5725 dnl CF_PATH_PROG version: 10 updated: 2019/06/30 19:44:43
5726 dnl ------------
5727 dnl Check for a given program, defining corresponding symbol.
5728 dnl     $1 = environment variable, which is suffixed by "_PATH" in the #define.
5729 dnl     $2 = program name to find.
5730 dnl     $3 = optional list of additional program names to test.
5731 dnl $4 = $PATH
5732 dnl
5733 dnl If there is more than one token in the result, #define the remaining tokens
5734 dnl to $1_ARGS.  We need this for 'install' in particular.
5735 dnl
5736 dnl FIXME: we should allow this to be overridden by environment variables
5737 dnl
5738 AC_DEFUN([CF_PATH_PROG],[
5739 AC_REQUIRE([CF_PATHSEP])
5740 test -z "[$]$1" && $1=$2
5741 AC_PATH_PROGS($1,[$]$1 $2 ifelse($3,,,$3),[$]$1, ifelse($4,,,$4))
5742
5743 cf_path_prog=""
5744 cf_path_args=""
5745 IFS="${IFS:-    }"; cf_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR"
5746 for cf_temp in $ac_cv_path_$1
5747 do
5748         if test -z "$cf_path_prog" ; then
5749                 if test "$with_full_paths" = yes ; then
5750                         CF_PATH_SYNTAX(cf_temp,break)
5751                         cf_path_prog="$cf_temp"
5752                 else
5753                         cf_path_prog="`basename $cf_temp`"
5754                 fi
5755         elif test -z "$cf_path_args" ; then
5756                 cf_path_args="$cf_temp"
5757         else
5758                 cf_path_args="$cf_path_args $cf_temp"
5759         fi
5760 done
5761 IFS="$cf_save_ifs"
5762
5763 if test -n "$cf_path_prog" ; then
5764         CF_MSG_LOG(defining path for ${cf_path_prog})
5765         AC_DEFINE_UNQUOTED($1_PATH,"$cf_path_prog",Define to pathname $1)
5766         test -n "$cf_path_args" && AC_DEFINE_UNQUOTED($1_ARGS,"$cf_path_args",Define to provide args for $1)
5767 fi
5768 ])dnl
5769 dnl ---------------------------------------------------------------------------
5770 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
5771 dnl --------------
5772 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
5773 dnl begins with one of the prefix/exec_prefix variables, and then again if the
5774 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
5775 dnl delayed evaluation of those symbols.
5776 AC_DEFUN([CF_PATH_SYNTAX],[
5777 if test "x$prefix" != xNONE; then
5778         cf_path_syntax="$prefix"
5779 else
5780         cf_path_syntax="$ac_default_prefix"
5781 fi
5782
5783 case ".[$]$1" in
5784 (.\[$]\(*\)*|.\'*\'*)
5785         ;;
5786 (..|./*|.\\*)
5787         ;;
5788 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
5789         ;;
5790 (.\[$]{*prefix}*|.\[$]{*dir}*)
5791         eval $1="[$]$1"
5792         case ".[$]$1" in
5793         (.NONE/*)
5794                 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
5795                 ;;
5796         esac
5797         ;;
5798 (.no|.NONE/*)
5799         $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
5800         ;;
5801 (*)
5802         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
5803         ;;
5804 esac
5805 ])dnl
5806 dnl ---------------------------------------------------------------------------
5807 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
5808 dnl -------------
5809 dnl Check for the package-config program, unless disabled by command-line.
5810 AC_DEFUN([CF_PKG_CONFIG],
5811 [
5812 AC_MSG_CHECKING(if you want to use pkg-config)
5813 AC_ARG_WITH(pkg-config,
5814         [  --with-pkg-config{=path} enable/disable use of pkg-config],
5815         [cf_pkg_config=$withval],
5816         [cf_pkg_config=yes])
5817 AC_MSG_RESULT($cf_pkg_config)
5818
5819 case $cf_pkg_config in
5820 (no)
5821         PKG_CONFIG=none
5822         ;;
5823 (yes)
5824         CF_ACVERSION_CHECK(2.52,
5825                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
5826                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
5827         ;;
5828 (*)
5829         PKG_CONFIG=$withval
5830         ;;
5831 esac
5832
5833 test -z "$PKG_CONFIG" && PKG_CONFIG=none
5834 if test "$PKG_CONFIG" != none ; then
5835         CF_PATH_SYNTAX(PKG_CONFIG)
5836 elif test "x$cf_pkg_config" != xno ; then
5837         AC_MSG_WARN(pkg-config is not installed)
5838 fi
5839
5840 AC_SUBST(PKG_CONFIG)
5841 ])dnl
5842 dnl ---------------------------------------------------------------------------
5843 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
5844 dnl -----------------
5845 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
5846 dnl
5847 dnl     POSIX.1-1990                            _POSIX_SOURCE
5848 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
5849 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
5850 dnl             Bindings Option
5851 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
5852 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
5853 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
5854 dnl
5855 dnl Parameters:
5856 dnl     $1 is the nominal value for _POSIX_C_SOURCE
5857 AC_DEFUN([CF_POSIX_C_SOURCE],
5858 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
5859
5860 if test "$cf_cv_posix_visible" = no; then
5861
5862 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
5863
5864 cf_save_CFLAGS="$CFLAGS"
5865 cf_save_CPPFLAGS="$CPPFLAGS"
5866
5867 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
5868 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
5869
5870 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
5871         CF_MSG_LOG(if the symbol is already defined go no further)
5872         AC_TRY_COMPILE([#include <sys/types.h>],[
5873 #ifndef _POSIX_C_SOURCE
5874 make an error
5875 #endif],
5876         [cf_cv_posix_c_source=no],
5877         [cf_want_posix_source=no
5878          case .$cf_POSIX_C_SOURCE in
5879          (.[[12]]??*)
5880                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
5881                 ;;
5882          (.2)
5883                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
5884                 cf_want_posix_source=yes
5885                 ;;
5886          (.*)
5887                 cf_want_posix_source=yes
5888                 ;;
5889          esac
5890          if test "$cf_want_posix_source" = yes ; then
5891                 AC_TRY_COMPILE([#include <sys/types.h>],[
5892 #ifdef _POSIX_SOURCE
5893 make an error
5894 #endif],[],
5895                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
5896          fi
5897          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
5898          CFLAGS="$cf_trim_CFLAGS"
5899          CPPFLAGS="$cf_trim_CPPFLAGS"
5900          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
5901          CF_MSG_LOG(if the second compile does not leave our definition intact error)
5902          AC_TRY_COMPILE([#include <sys/types.h>],[
5903 #ifndef _POSIX_C_SOURCE
5904 make an error
5905 #endif],,
5906          [cf_cv_posix_c_source=no])
5907          CFLAGS="$cf_save_CFLAGS"
5908          CPPFLAGS="$cf_save_CPPFLAGS"
5909         ])
5910 ])
5911
5912 if test "$cf_cv_posix_c_source" != no ; then
5913         CFLAGS="$cf_trim_CFLAGS"
5914         CPPFLAGS="$cf_trim_CPPFLAGS"
5915         CF_ADD_CFLAGS($cf_cv_posix_c_source)
5916 fi
5917
5918 fi # cf_cv_posix_visible
5919
5920 ])dnl
5921 dnl ---------------------------------------------------------------------------
5922 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
5923 dnl ----------------
5924 dnl POSIX documents test-macros which an application may set before any system
5925 dnl headers are included to make features available.
5926 dnl
5927 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
5928 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
5929 dnl recent features visible in the system header files unless the application
5930 dnl overrides the corresponding test-macros.  Doing that introduces portability
5931 dnl problems.
5932 dnl
5933 dnl This macro makes a special check for the symbols used for this, to avoid a
5934 dnl conflicting definition.
5935 AC_DEFUN([CF_POSIX_VISIBLE],
5936 [
5937 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
5938 AC_TRY_COMPILE([#include <stdio.h>],[
5939 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
5940         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
5941         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
5942         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
5943 #error conflicting symbols found
5944 #endif
5945 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
5946 ])
5947 ])dnl
5948 dnl ---------------------------------------------------------------------------
5949 dnl CF_PREDEFINE version: 2 updated: 2010/05/26 16:44:57
5950 dnl ------------
5951 dnl Add definitions to CPPFLAGS to ensure they're predefined for all compiles.
5952 dnl
5953 dnl $1 = symbol to test
5954 dnl $2 = value (if any) to use for a predefinition
5955 AC_DEFUN([CF_PREDEFINE],
5956 [
5957 AC_MSG_CHECKING(if we must define $1)
5958 AC_TRY_COMPILE([#include <sys/types.h>
5959 ],[
5960 #ifndef $1
5961 make an error
5962 #endif],[cf_result=no],[cf_result=yes])
5963 AC_MSG_RESULT($cf_result)
5964
5965 if test "$cf_result" = yes ; then
5966         CPPFLAGS="$CPPFLAGS ifelse([$2],,-D$1,[-D$1=$2])"
5967 elif test "x$2" != "x" ; then
5968         AC_MSG_CHECKING(checking for compatible value versus $2)
5969         AC_TRY_COMPILE([#include <sys/types.h>
5970 ],[
5971 #if $1-$2 < 0
5972 make an error
5973 #endif],[cf_result=yes],[cf_result=no])
5974         AC_MSG_RESULT($cf_result)
5975         if test "$cf_result" = no ; then
5976                 # perhaps we can override it - try...
5977                 CPPFLAGS="$CPPFLAGS -D$1=$2"
5978         fi
5979 fi
5980 ])dnl
5981 dnl ---------------------------------------------------------------------------
5982 dnl CF_PRG_RULES version: 1 updated: 2006/06/03 11:45:08
5983 dnl ------------
5984 dnl Append definitions and rules for the given programs to the subdirectory
5985 dnl Makefiles, and the recursion rule for the top-level Makefile.
5986 dnl
5987 dnl parameters
5988 dnl     $1 = script to run
5989 dnl     $2 = list of subdirectories
5990 dnl
5991 dnl variables
5992 dnl     $AWK
5993 AC_DEFUN([CF_PRG_RULES],
5994 [
5995 for cf_dir in $2
5996 do
5997         if test ! -d $srcdir/$cf_dir; then
5998                 continue
5999         elif test -f $srcdir/$cf_dir/programs; then
6000                 $AWK -f $1 $srcdir/$cf_dir/programs >>$cf_dir/Makefile
6001         fi
6002 done
6003
6004 ])dnl
6005 dnl ---------------------------------------------------------------------------
6006 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
6007 dnl ----------
6008 dnl Check for archiver "ar".
6009 AC_DEFUN([CF_PROG_AR],[
6010 AC_CHECK_TOOL(AR, ar, ar)
6011 ])
6012 dnl ---------------------------------------------------------------------------
6013 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
6014 dnl -----------
6015 dnl Check for awk, ensure that the check found something.
6016 AC_DEFUN([CF_PROG_AWK],
6017 [
6018 AC_PROG_AWK
6019 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
6020 ])dnl
6021 dnl ---------------------------------------------------------------------------
6022 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
6023 dnl ----------
6024 dnl standard check for CC, plus followup sanity checks
6025 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
6026 AC_DEFUN([CF_PROG_CC],[
6027 CF_ACVERSION_CHECK(2.53,
6028         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
6029          AC_REQUIRE([AC_PROG_CC])],
6030         [])
6031 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
6032 CF_GCC_VERSION
6033 CF_ACVERSION_CHECK(2.52,
6034         [AC_PROG_CC_STDC],
6035         [CF_ANSI_CC_REQD])
6036 CF_CC_ENV_FLAGS
6037 ])dnl
6038 dnl ---------------------------------------------------------------------------
6039 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
6040 dnl --------------
6041 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
6042 dnl the output file can be renamed, and allows for a shell variable that can
6043 dnl be used later.  The parameter is either CC or CXX.  The result is the
6044 dnl cache variable:
6045 dnl     $cf_cv_prog_CC_c_o
6046 dnl     $cf_cv_prog_CXX_c_o
6047 dnl
6048 dnl $1 = compiler
6049 dnl $2 = compiler options, if any
6050 AC_DEFUN([CF_PROG_CC_C_O],
6051 [AC_REQUIRE([AC_PROG_CC])dnl
6052 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
6053 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
6054 [
6055 cat > conftest.$ac_ext <<CF_EOF
6056 int main(void)
6057 {
6058         ${cf_cv_main_return:-return}(0);
6059 }
6060 CF_EOF
6061 # We do the test twice because some compilers refuse to overwrite an
6062 # existing .o file with -o, though they will create one.
6063 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
6064 if AC_TRY_EVAL(ac_try) &&
6065   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
6066 then
6067   eval cf_cv_prog_$1_c_o=yes
6068 else
6069   eval cf_cv_prog_$1_c_o=no
6070 fi
6071 rm -rf conftest*
6072 ])dnl
6073 if test $cf_cv_prog_$1_c_o = yes; then
6074   AC_MSG_RESULT([yes])
6075 else
6076   AC_MSG_RESULT([no])
6077 fi
6078 ])dnl
6079 dnl ---------------------------------------------------------------------------
6080 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
6081 dnl -------------
6082 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
6083 dnl This macro adds a check to ensure the script found something.
6084 AC_DEFUN([CF_PROG_EGREP],
6085 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
6086         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
6087                 then ac_cv_prog_egrep='grep -E'
6088                 else ac_cv_prog_egrep='egrep'
6089         fi])
6090         EGREP=$ac_cv_prog_egrep
6091         AC_SUBST([EGREP])
6092         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
6093 ])dnl
6094 dnl ---------------------------------------------------------------------------
6095 dnl CF_PROG_GNAT version: 10 updated: 2019/12/31 08:53:54
6096 dnl ------------
6097 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
6098 AC_DEFUN([CF_PROG_GNAT],[
6099 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
6100 do
6101         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
6102
6103         unset ac_cv_path_cf_TEMP_gnat
6104         unset cf_TEMP_gnat
6105         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
6106         eval cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat
6107
6108         if test "x$cf_TEMP_gnat" != xno; then
6109                 unset cf_cv_gnat_version
6110                 unset cf_TEMP_gnat
6111                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
6112         fi
6113         eval cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat
6114
6115         unset cf_TEMP_gnat
6116         unset cf_cv_gnat_version
6117         unset ac_cv_path_cf_TEMP_gnat
6118 done
6119
6120 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
6121         cf_ada_make=
6122         cf_cv_prog_gnat_correct=no
6123 else
6124         cf_ada_make=gnatmake
6125         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
6126                 # gprconfig is newer than gnatmake; we can continue...
6127                 cf_ada_config="##"
6128         else
6129                 rm -rf conftest* *~conftest*
6130                 if mkdir conftest.src
6131                 then
6132                         cf_ada_config=""
6133                         cd conftest.src
6134                         for cf_gprconfig in Ada C
6135                         do
6136                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
6137                                 if test $cf_gprconfig = C
6138                                 then
6139                                         for cf_gprconfig_param in \
6140                                                 $cf_gprconfig,,,,GNATGCC \
6141                                                 $cf_gprconfig,,,,GCC \
6142                                                 $cf_gprconfig
6143                                         do
6144                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6145                                                 test -n "$cf_gprconfig_value" && break
6146                                         done
6147                                 else
6148                                         cf_gprconfig_param=$cf_gprconfig
6149                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6150                                 fi
6151                                 if test -n "$cf_gprconfig_value"
6152                                 then
6153                                         eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
6154                                         AC_MSG_RESULT($cf_gprconfig_value)
6155                                 else
6156                                         AC_MSG_RESULT(missing)
6157                                         cf_ada_config="#"
6158                                         break
6159                                 fi
6160                         done
6161                         cd ..
6162                         rm -rf conftest* *~conftest*
6163                 fi
6164         fi
6165         if test "x$cf_ada_config" != "x#"
6166         then
6167                 CF_GNAT_VERSION
6168                 CF_CHECK_GNAT_VERSION
6169                 AC_CHECK_PROG(M4_exists, m4, yes, no)
6170                 if test "$ac_cv_prog_M4_exists" = no; then
6171                         cf_cv_prog_gnat_correct=no
6172                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
6173                 fi
6174                 if test "$cf_cv_prog_gnat_correct" = yes; then
6175                         AC_MSG_CHECKING(if GNAT works)
6176                         CF_GNAT_TRY_RUN([procedure conftest;],
6177 [with Text_IO;
6178 with GNAT.OS_Lib;
6179 procedure conftest is
6180 begin
6181    Text_IO.Put ("Hello World");
6182    Text_IO.New_Line;
6183    GNAT.OS_Lib.OS_Exit (0);
6184 end conftest;],
6185 [cf_cv_prog_gnat_correct=yes],
6186 [cf_cv_prog_gnat_correct=no])
6187                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
6188                 fi
6189         else
6190                 cf_cv_prog_gnat_correct=no
6191         fi
6192 fi
6193
6194 AC_SUBST(cf_ada_make)
6195 AC_SUBST(cf_ada_config)
6196 AC_SUBST(cf_ada_config_Ada)
6197 AC_SUBST(cf_ada_config_C)
6198 ])dnl
6199 dnl ---------------------------------------------------------------------------
6200 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
6201 dnl ---------------
6202 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
6203 dnl misc/tabset install won't work properly.  Usually this happens only when
6204 dnl using the fallback mkinstalldirs script
6205 AC_DEFUN([CF_PROG_INSTALL],
6206 [AC_PROG_INSTALL
6207 case $INSTALL in
6208 (/*)
6209         ;;
6210 (*)
6211         CF_DIRNAME(cf_dir,$INSTALL)
6212         test -z "$cf_dir" && cf_dir=.
6213         INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
6214         ;;
6215 esac
6216 ])dnl
6217 dnl ---------------------------------------------------------------------------
6218 dnl CF_PROG_LDCONFIG version: 5 updated: 2015/04/18 08:56:57
6219 dnl ----------------
6220 dnl Check for ldconfig, needed to fixup shared libraries that would be built
6221 dnl and then used in the install.
6222 AC_DEFUN([CF_PROG_LDCONFIG],[
6223 if test "$cross_compiling" = yes ; then
6224         LDCONFIG=:
6225 else
6226         case "$cf_cv_system_name" in
6227         (dragonfly*|mirbsd*|freebsd*)
6228                 test -z "$LDCONFIG" && LDCONFIG="/sbin/ldconfig -R"
6229                 ;;
6230         (*) LDPATH=$PATH:/sbin:/usr/sbin
6231                 AC_PATH_PROG(LDCONFIG,ldconfig,,$LDPATH)
6232                 ;;
6233         esac
6234 fi
6235 AC_SUBST(LDCONFIG)
6236 ])dnl
6237 dnl ---------------------------------------------------------------------------
6238 dnl CF_PROG_LINT version: 4 updated: 2019/11/20 18:55:37
6239 dnl ------------
6240 AC_DEFUN([CF_PROG_LINT],
6241 [
6242 AC_CHECK_PROGS(LINT, lint cppcheck splint)
6243 case "x$LINT" in
6244 (xcppcheck|x*/cppcheck)
6245         test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
6246         ;;
6247 esac
6248 AC_SUBST(LINT_OPTS)
6249 ])dnl
6250 dnl ---------------------------------------------------------------------------
6251 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
6252 dnl ------------
6253 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
6254 dnl option if it is supported.
6255 AC_DEFUN([CF_PROG_LN_S],[
6256 AC_PROG_LN_S
6257 AC_MSG_CHECKING(if $LN_S -f options work)
6258
6259 rm -f conf$$.src conf$$dst
6260 echo >conf$$.dst
6261 echo first >conf$$.src
6262 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
6263         cf_prog_ln_sf=yes
6264 else
6265         cf_prog_ln_sf=no
6266 fi
6267 rm -f conf$$.dst conf$$src
6268 AC_MSG_RESULT($cf_prog_ln_sf)
6269
6270 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
6271 ])dnl
6272 dnl ---------------------------------------------------------------------------
6273 dnl CF_REGEX version: 12 updated: 2015/04/18 08:56:57
6274 dnl --------
6275 dnl Attempt to determine if we've got one of the flavors of regular-expression
6276 dnl code that we can support.
6277 AC_DEFUN([CF_REGEX],
6278 [
6279
6280 cf_regex_func=no
6281
6282 cf_regex_libs="regex re"
6283 case $host_os in
6284 (mingw*)
6285         cf_regex_libs="gnurx $cf_regex_libs"
6286         ;;
6287 esac
6288
6289 AC_CHECK_FUNC(regcomp,[cf_regex_func=regcomp],[
6290         for cf_regex_lib in $cf_regex_libs
6291         do
6292                 AC_CHECK_LIB($cf_regex_lib,regcomp,[
6293                                 CF_ADD_LIB($cf_regex_lib)
6294                                 cf_regex_func=regcomp
6295                                 break])
6296         done
6297 ])
6298
6299 if test "$cf_regex_func" = no ; then
6300         AC_CHECK_FUNC(compile,[cf_regex_func=compile],[
6301                 AC_CHECK_LIB(gen,compile,[
6302                                 CF_ADD_LIB(gen)
6303                                 cf_regex_func=compile])])
6304 fi
6305
6306 if test "$cf_regex_func" = no ; then
6307         AC_MSG_WARN(cannot find regular expression library)
6308 fi
6309
6310 AC_CACHE_CHECK(for regular-expression headers,cf_cv_regex_hdrs,[
6311
6312 cf_cv_regex_hdrs=no
6313 case $cf_regex_func in
6314 (compile)
6315         for cf_regex_hdr in regexp.h regexpr.h
6316         do
6317                 AC_TRY_LINK([#include <$cf_regex_hdr>],[
6318                         char *p = compile("", "", "", 0);
6319                         int x = step("", "");
6320                 ],[
6321                         cf_cv_regex_hdrs=$cf_regex_hdr
6322                         break
6323                 ])
6324         done
6325         ;;
6326 (*)
6327         for cf_regex_hdr in regex.h
6328         do
6329                 AC_TRY_LINK([#include <sys/types.h>
6330 #include <$cf_regex_hdr>],[
6331                         regex_t *p;
6332                         int x = regcomp(p, "", 0);
6333                         int y = regexec(p, "", 0, 0, 0);
6334                         regfree(p);
6335                 ],[
6336                         cf_cv_regex_hdrs=$cf_regex_hdr
6337                         break
6338                 ])
6339         done
6340         ;;
6341 esac
6342
6343 ])
6344
6345 case $cf_cv_regex_hdrs in
6346         (no)            AC_MSG_WARN(no regular expression header found) ;;
6347         (regex.h)       AC_DEFINE(HAVE_REGEX_H_FUNCS,1,[Define to 1 to include regex.h for regular expressions]) ;;
6348         (regexp.h)      AC_DEFINE(HAVE_REGEXP_H_FUNCS,1,[Define to 1 to include regexp.h for regular expressions]) ;;
6349         (regexpr.h) AC_DEFINE(HAVE_REGEXPR_H_FUNCS,1,[Define to 1 to include regexpr.h for regular expressions]) ;;
6350 esac
6351 ])dnl
6352 dnl ---------------------------------------------------------------------------
6353 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
6354 dnl ----------------
6355 dnl Remove all -U and -D options that refer to the given symbol from a list
6356 dnl of C compiler options.  This works around the problem that not all
6357 dnl compilers process -U and -D options from left-to-right, so a -U option
6358 dnl cannot be used to cancel the effect of a preceding -D option.
6359 dnl
6360 dnl $1 = target (which could be the same as the source variable)
6361 dnl $2 = source (including '$')
6362 dnl $3 = symbol to remove
6363 define([CF_REMOVE_DEFINE],
6364 [
6365 $1=`echo "$2" | \
6366         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
6367                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
6368 ])dnl
6369 dnl ---------------------------------------------------------------------------
6370 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
6371 dnl -------------
6372 dnl Remove the given library from the symbol
6373 dnl
6374 dnl $1 = target (which could be the same as the source variable)
6375 dnl $2 = source (including '$')
6376 dnl $3 = library to remove
6377 define([CF_REMOVE_LIB],
6378 [
6379 # remove $3 library from $2
6380 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
6381 ])dnl
6382 dnl ---------------------------------------------------------------------------
6383 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
6384 dnl ---------------------
6385 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
6386 dnl $1 = name of current macro
6387 define([CF_RESTORE_XTRA_FLAGS],
6388 [
6389 LIBS="$cf_save_LIBS_$1"
6390 CFLAGS="$cf_save_CFLAGS_$1"
6391 CPPFLAGS="$cf_save_CPPFLAGS_$1"
6392 ])dnl
6393 dnl ---------------------------------------------------------------------------
6394 dnl CF_RPATH_HACK version: 11 updated: 2013/09/01 13:02:00
6395 dnl -------------
6396 AC_DEFUN([CF_RPATH_HACK],
6397 [
6398 AC_REQUIRE([CF_LD_RPATH_OPT])
6399 AC_MSG_CHECKING(for updated LDFLAGS)
6400 if test -n "$LD_RPATH_OPT" ; then
6401         AC_MSG_RESULT(maybe)
6402
6403         AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
6404         cf_rpath_list="/usr/lib /lib"
6405         if test "$cf_ldd_prog" != no
6406         then
6407                 cf_rpath_oops=
6408
6409 AC_TRY_LINK([#include <stdio.h>],
6410                 [printf("Hello");],
6411                 [cf_rpath_oops=`$cf_ldd_prog conftest$ac_exeext | fgrep ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
6412                  cf_rpath_list=`$cf_ldd_prog conftest$ac_exeext | fgrep / | sed -e 's%^.*[[     ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
6413
6414                 # If we passed the link-test, but get a "not found" on a given library,
6415                 # this could be due to inept reconfiguration of gcc to make it only
6416                 # partly honor /usr/local/lib (or whatever).  Sometimes this behavior
6417                 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
6418                 # /usr/local libraries.
6419                 if test -n "$cf_rpath_oops"
6420                 then
6421                         for cf_rpath_src in $cf_rpath_oops
6422                         do
6423                                 for cf_rpath_dir in \
6424                                         /usr/local \
6425                                         /usr/pkg \
6426                                         /opt/sfw
6427                                 do
6428                                         if test -f $cf_rpath_dir/lib/$cf_rpath_src
6429                                         then
6430                                                 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
6431                                                 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
6432                                                 break
6433                                         fi
6434                                 done
6435                         done
6436                 fi
6437         fi
6438
6439         CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
6440
6441         CF_RPATH_HACK_2(LDFLAGS)
6442         CF_RPATH_HACK_2(LIBS)
6443
6444         CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
6445 else
6446         AC_MSG_RESULT(no)
6447 fi
6448 AC_SUBST(EXTRA_LDFLAGS)
6449 ])dnl
6450 dnl ---------------------------------------------------------------------------
6451 dnl CF_RPATH_HACK_2 version: 7 updated: 2015/04/12 15:39:00
6452 dnl ---------------
6453 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
6454 dnl EXTRA_LDFLAGS for each -L option found.
6455 dnl
6456 dnl $cf_rpath_list contains a list of directories to ignore.
6457 dnl
6458 dnl $1 = variable name to update.  The LDFLAGS variable should be the only one,
6459 dnl      but LIBS often has misplaced -L options.
6460 AC_DEFUN([CF_RPATH_HACK_2],
6461 [
6462 CF_VERBOSE(...checking $1 [$]$1)
6463
6464 cf_rpath_dst=
6465 for cf_rpath_src in [$]$1
6466 do
6467         case $cf_rpath_src in
6468         (-L*)
6469
6470                 # check if this refers to a directory which we will ignore
6471                 cf_rpath_skip=no
6472                 if test -n "$cf_rpath_list"
6473                 then
6474                         for cf_rpath_item in $cf_rpath_list
6475                         do
6476                                 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
6477                                 then
6478                                         cf_rpath_skip=yes
6479                                         break
6480                                 fi
6481                         done
6482                 fi
6483
6484                 if test "$cf_rpath_skip" = no
6485                 then
6486                         # transform the option
6487                         if test "$LD_RPATH_OPT" = "-R " ; then
6488                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
6489                         else
6490                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
6491                         fi
6492
6493                         # if we have not already added this, add it now
6494                         cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
6495                         if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
6496                         then
6497                                 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
6498                                 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
6499                         fi
6500                 fi
6501                 ;;
6502         esac
6503         cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
6504 done
6505 $1=$cf_rpath_dst
6506
6507 CF_VERBOSE(...checked $1 [$]$1)
6508 AC_SUBST(EXTRA_LDFLAGS)
6509 ])dnl
6510 dnl ---------------------------------------------------------------------------
6511 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
6512 dnl ------------------
6513 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
6514 dnl and libraries which do not update those variables.
6515 dnl
6516 dnl $1 = name of current macro
6517 define([CF_SAVE_XTRA_FLAGS],
6518 [
6519 cf_save_LIBS_$1="$LIBS"
6520 cf_save_CFLAGS_$1="$CFLAGS"
6521 cf_save_CPPFLAGS_$1="$CPPFLAGS"
6522 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
6523 for cf_X_CFLAGS in $X_CFLAGS
6524 do
6525         case "x$cf_X_CFLAGS" in
6526         x-[[IUD]]*)
6527                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
6528                 ;;
6529         *)
6530                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
6531                 ;;
6532         esac
6533 done
6534 ])dnl
6535 dnl ---------------------------------------------------------------------------
6536 dnl CF_SHARED_OPTS version: 94 updated: 2020/02/29 16:09:19
6537 dnl --------------
6538 dnl --------------
6539 dnl Attempt to determine the appropriate CC/LD options for creating a shared
6540 dnl library.
6541 dnl
6542 dnl Notes:
6543 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
6544 dnl the build-tree, i.e., by making use of the libraries that are compiled in
6545 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
6546 dnl shared library since that can lead to unexpected results at runtime.
6547 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
6548 dnl libraries are compiled in ../../lib
6549 dnl
6550 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
6551 dnl to install symbolic links to the rel/abi versions of shared libraries.
6552 dnl
6553 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
6554 dnl version when making symbolic links.
6555 dnl
6556 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
6557 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
6558 dnl (ex: libncurses.so.<ver>).
6559 dnl
6560 dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
6561 AC_DEFUN([CF_SHARED_OPTS],
6562 [
6563         AC_REQUIRE([CF_LD_RPATH_OPT])
6564
6565         RM_SHARED_OPTS=
6566         LOCAL_LDFLAGS=
6567         LOCAL_LDFLAGS2=
6568         LD_SHARED_OPTS=
6569         INSTALL_LIB="-m 644"
6570         : ${rel_builddir:=.}
6571
6572         shlibdir=$libdir
6573         AC_SUBST(shlibdir)
6574
6575         MAKE_DLLS="#"
6576         AC_SUBST(MAKE_DLLS)
6577
6578         cf_cv_do_symlinks=no
6579         cf_ld_rpath_opt=
6580         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
6581
6582         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
6583         AC_ARG_WITH(shlib-version,
6584         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
6585         [test -z "$withval" && withval=auto
6586         case $withval in
6587         (yes)
6588                 cf_cv_shlib_version=auto
6589                 ;;
6590         (rel|abi|auto)
6591                 cf_cv_shlib_version=$withval
6592                 ;;
6593         (*)
6594                 AC_MSG_RESULT($withval)
6595                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
6596                 ;;
6597         esac
6598         ],[cf_cv_shlib_version=auto])
6599         AC_MSG_RESULT($cf_cv_shlib_version)
6600
6601         cf_cv_rm_so_locs=no
6602         cf_try_cflags=
6603
6604         # Some less-capable ports of gcc support only -fpic
6605         CC_SHARED_OPTS=
6606
6607         cf_try_fPIC=no
6608         if test "$GCC" = yes
6609         then
6610                 cf_try_fPIC=yes
6611         else
6612                 case $cf_cv_system_name in
6613                 (*linux*)       # e.g., PGI compiler
6614                         cf_try_fPIC=yes
6615                         ;;
6616                 esac
6617         fi
6618
6619         if test "$cf_try_fPIC" = yes
6620         then
6621                 AC_MSG_CHECKING(which $CC option to use)
6622                 cf_save_CFLAGS="$CFLAGS"
6623                 for CC_SHARED_OPTS in -fPIC -fpic ''
6624                 do
6625                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
6626                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
6627                 done
6628                 AC_MSG_RESULT($CC_SHARED_OPTS)
6629                 CFLAGS="$cf_save_CFLAGS"
6630         fi
6631
6632         cf_cv_shlib_version_infix=no
6633
6634         case $cf_cv_system_name in
6635         (aix4.[3-9]*|aix[[5-7]]*)
6636                 if test "$GCC" = yes; then
6637                         CC_SHARED_OPTS='-Wl,-brtl'
6638                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
6639                 else
6640                         CC_SHARED_OPTS='-brtl'
6641                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
6642                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
6643                 fi
6644                 ;;
6645         (beos*)
6646                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
6647                 ;;
6648         (cygwin*)
6649                 CC_SHARED_OPTS=
6650                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
6651                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6652                 cf_cv_shlib_version=cygdll
6653                 cf_cv_shlib_version_infix=cygdll
6654                 shlibdir=$bindir
6655                 MAKE_DLLS=
6656                 cat >mk_shared_lib.sh <<-CF_EOF
6657                 #!$SHELL
6658                 SHARED_LIB=\[$]1
6659                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
6660                 shift
6661                 cat <<-EOF
6662                 Linking shared library
6663                 ** SHARED_LIB \[$]SHARED_LIB
6664                 ** IMPORT_LIB \[$]IMPORT_LIB
6665 EOF
6666                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
6667 CF_EOF
6668                 chmod +x mk_shared_lib.sh
6669                 ;;
6670         (msys*)
6671                 CC_SHARED_OPTS=
6672                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
6673                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6674                 cf_cv_shlib_version=msysdll
6675                 cf_cv_shlib_version_infix=msysdll
6676                 shlibdir=$bindir
6677                 MAKE_DLLS=
6678                 cat >mk_shared_lib.sh <<-CF_EOF
6679                 #!$SHELL
6680                 SHARED_LIB=\[$]1
6681                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
6682                 shift
6683                 cat <<-EOF
6684                 Linking shared library
6685                 ** SHARED_LIB \[$]SHARED_LIB
6686                 ** IMPORT_LIB \[$]IMPORT_LIB
6687 EOF
6688                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
6689 CF_EOF
6690                 chmod +x mk_shared_lib.sh
6691                 ;;
6692         (darwin*)
6693                 cf_try_cflags="no-cpp-precomp"
6694                 CC_SHARED_OPTS="-dynamic"
6695                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
6696                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
6697                 cf_cv_shlib_version_infix=yes
6698                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
6699                         cf_save_LDFLAGS=$LDFLAGS
6700                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
6701                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
6702                                 LDFLAGS=$cf_save_LDFLAGS])
6703                 if test $cf_cv_ldflags_search_paths_first = yes; then
6704                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
6705                 fi
6706                 ;;
6707         (hpux[[7-8]]*)
6708                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
6709                 if test "$GCC" != yes; then
6710                         CC_SHARED_OPTS='+Z'
6711                 fi
6712                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
6713                 INSTALL_LIB="-m 555"
6714                 ;;
6715         (hpux*)
6716                 # (tested with gcc 2.7.2 -- I don't have c89)
6717                 if test "$GCC" = yes; then
6718                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
6719                 else
6720                         CC_SHARED_OPTS='+Z'
6721                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
6722                 fi
6723                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
6724                 # HP-UX shared libraries must be executable, and should be
6725                 # readonly to exploit a quirk in the memory manager.
6726                 INSTALL_LIB="-m 555"
6727                 ;;
6728         (interix*)
6729                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6730                 if test "$cf_cv_shlib_version" = rel; then
6731                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
6732                 else
6733                         cf_shared_soname='`basename $[@]`'
6734                 fi
6735                 CC_SHARED_OPTS=
6736                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
6737                 ;;
6738         (irix*)
6739                 if test "$cf_cv_enable_rpath" = yes ; then
6740                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6741                 fi
6742                 # tested with IRIX 5.2 and 'cc'.
6743                 if test "$GCC" != yes; then
6744                         CC_SHARED_OPTS='-KPIC'
6745                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
6746                 else
6747                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
6748                 fi
6749                 cf_cv_rm_so_locs=yes
6750                 ;;
6751         (linux*|gnu*|k*bsd*-gnu)
6752                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
6753                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
6754                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6755                 fi
6756                 if test "$cf_cv_enable_rpath" = yes ; then
6757                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6758                 fi
6759                 CF_SHARED_SONAME
6760                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
6761                 ;;
6762         (mingw*msvc*)
6763                 cf_cv_shlib_version=mingw
6764                 cf_cv_shlib_version_infix=mingw
6765                 shlibdir=$bindir
6766                 MAKE_DLLS=
6767                 if test "$DFT_LWR_MODEL" = "shared" ; then
6768                         LOCAL_LDFLAGS="-link -dll"
6769                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6770                         EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
6771                 fi
6772                 CC_SHARED_OPTS=
6773                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh $@ ${LD} ${CFLAGS}'
6774                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6775                 cat >mk_shared_lib.sh <<-CF_EOF
6776                 #!$SHELL
6777                 SHARED_LIB=\$1
6778                 IMPORT_LIB=\`echo "\$1" | sed -e 's/[0-9]*\.dll$\.dll.a/'\`
6779                 shift
6780                 my_ld=\$1
6781                 shift
6782                 cat <<-EOF
6783                 Linking shared library
6784                 ** SHARED LIB \$SHARED_LIB
6785                 ** IMPORT_LIB \$IMPORT_LIB
6786 EOF
6787                 args=\$(echo \$* | sed -E "s#-l(\w*)#lib\1.a#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
6788                 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
6789                 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
6790 CF_EOF
6791                 chmod +x mk_shared_lib.sh
6792                 ;;
6793         (mingw*)
6794                 cf_cv_shlib_version=mingw
6795                 cf_cv_shlib_version_infix=mingw
6796                 shlibdir=$bindir
6797                 MAKE_DLLS=
6798                 if test "$DFT_LWR_MODEL" = "shared" ; then
6799                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
6800                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6801                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
6802                 fi
6803                 CC_SHARED_OPTS=
6804                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
6805                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6806                 cat >mk_shared_lib.sh <<-CF_EOF
6807                 #!$SHELL
6808                 SHARED_LIB=\[$]1
6809                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
6810                 shift
6811                 cat <<-EOF
6812                 Linking shared library
6813                 ** SHARED_LIB \[$]SHARED_LIB
6814                 ** IMPORT_LIB \[$]IMPORT_LIB
6815 EOF
6816                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
6817 CF_EOF
6818                 chmod +x mk_shared_lib.sh
6819                 ;;
6820         (openbsd[[2-9]].*|mirbsd*)
6821                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
6822                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
6823                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6824                 fi
6825                 if test "$cf_cv_enable_rpath" = yes ; then
6826                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6827                 fi
6828                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6829                 CF_SHARED_SONAME
6830                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
6831                 ;;
6832         (nto-qnx*|openbsd*|freebsd[[12]].*)
6833                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6834                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
6835                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6836                 ;;
6837         (dragonfly*|freebsd*)
6838                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6839                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
6840                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
6841                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
6842                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6843                 fi
6844                 CF_SHARED_SONAME
6845                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
6846                 ;;
6847         (netbsd*)
6848                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6849                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
6850                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
6851                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6852                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6853                         if test "$cf_cv_shlib_version" = auto; then
6854                         if test -f /usr/libexec/ld.elf_so; then
6855                                 cf_cv_shlib_version=abi
6856                         else
6857                                 cf_cv_shlib_version=rel
6858                         fi
6859                         fi
6860                         CF_SHARED_SONAME
6861                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
6862                 else
6863                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
6864                 fi
6865                 ;;
6866         (osf*|mls+*)
6867                 # tested with OSF/1 V3.2 and 'cc'
6868                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
6869                 # link with shared libs).
6870                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
6871                 case $host_os in
6872                 (osf4*)
6873                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
6874                         ;;
6875                 esac
6876                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
6877                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
6878                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
6879                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6880                 fi
6881                 cf_cv_rm_so_locs=yes
6882                 ;;
6883         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
6884                 # tested with osr5.0.5
6885                 if test "$GCC" != yes; then
6886                         CC_SHARED_OPTS='-belf -KPIC'
6887                 fi
6888                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
6889                 if test "$cf_cv_enable_rpath" = yes ; then
6890                         # only way is to set LD_RUN_PATH but no switch for it
6891                         RUN_PATH=$libdir
6892                 fi
6893                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6894                 LINK_PROGS='LD_RUN_PATH=${libdir}'
6895                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
6896                 ;;
6897         (sunos4*)
6898                 # tested with SunOS 4.1.1 and gcc 2.7.0
6899                 if test "$GCC" != yes; then
6900                         CC_SHARED_OPTS='-KPIC'
6901                 fi
6902                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
6903                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6904                 ;;
6905         (solaris2*)
6906                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
6907                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
6908                 if test "$DFT_LWR_MODEL" = "shared" ; then
6909                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
6910                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6911                 fi
6912                 if test "$cf_cv_enable_rpath" = yes ; then
6913                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
6914                 fi
6915                 CF_SHARED_SONAME
6916                 if test "$GCC" != yes; then
6917                         cf_save_CFLAGS="$CFLAGS"
6918                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
6919                         do
6920                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
6921                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
6922                         done
6923                         CFLAGS="$cf_save_CFLAGS"
6924                         CC_SHARED_OPTS=$cf_shared_opts
6925                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
6926                 else
6927                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
6928                 fi
6929                 ;;
6930         (sysv5uw7*|unix_sv*)
6931                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
6932                 if test "$GCC" != yes; then
6933                         CC_SHARED_OPTS='-KPIC'
6934                 fi
6935                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
6936                 ;;
6937         (*)
6938                 CC_SHARED_OPTS='unknown'
6939                 MK_SHARED_LIB='echo unknown'
6940                 ;;
6941         esac
6942
6943         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
6944         case "$cf_cv_shlib_version" in
6945         (rel|abi)
6946                 case "$MK_SHARED_LIB" in
6947                 (*'-o $[@]')
6948                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
6949                         ;;
6950                 (*)
6951                         AC_MSG_WARN(ignored --with-shlib-version)
6952                         ;;
6953                 esac
6954                 ;;
6955         esac
6956
6957         if test -n "$cf_try_cflags"
6958         then
6959 cat > conftest.$ac_ext <<EOF
6960 #line __oline__ "${as_me:-configure}"
6961 #include <stdio.h>
6962 int main(int argc, char *argv[[]])
6963 {
6964         printf("hello\n");
6965         return (argv[[argc-1]] == 0) ;
6966 }
6967 EOF
6968                 cf_save_CFLAGS="$CFLAGS"
6969                 for cf_opt in $cf_try_cflags
6970                 do
6971                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
6972                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
6973                         if AC_TRY_EVAL(ac_compile); then
6974                                 AC_MSG_RESULT(yes)
6975                                 cf_save_CFLAGS="$CFLAGS"
6976                         else
6977                                 AC_MSG_RESULT(no)
6978                         fi
6979                 done
6980                 CFLAGS="$cf_save_CFLAGS"
6981         fi
6982
6983
6984         # RPATH_LIST is a colon-separated list of directories
6985         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
6986         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
6987
6988         test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
6989
6990         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
6991         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
6992
6993         AC_SUBST(CC_SHARED_OPTS)
6994         AC_SUBST(LD_RPATH_OPT)
6995         AC_SUBST(LD_SHARED_OPTS)
6996         AC_SUBST(MK_SHARED_LIB)
6997         AC_SUBST(RM_SHARED_OPTS)
6998
6999         AC_SUBST(LINK_PROGS)
7000         AC_SUBST(LINK_TESTS)
7001
7002         AC_SUBST(EXTRA_LDFLAGS)
7003         AC_SUBST(LOCAL_LDFLAGS)
7004         AC_SUBST(LOCAL_LDFLAGS2)
7005
7006         AC_SUBST(INSTALL_LIB)
7007         AC_SUBST(RPATH_LIST)
7008 ])dnl
7009 dnl ---------------------------------------------------------------------------
7010 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
7011 dnl ----------------
7012 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
7013 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
7014 dnl option.
7015 dnl
7016 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
7017 dnl If missing, use "rel".
7018 define([CF_SHARED_SONAME],
7019 [
7020         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
7021         if test "$cf_cv_shlib_version" = rel; then
7022                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
7023         else
7024                 cf_cv_shared_soname='`basename $[@]`'
7025         fi
7026 ])
7027 dnl ---------------------------------------------------------------------------
7028 dnl CF_SIGWINCH version: 2 updated: 2019/03/23 19:54:44
7029 dnl -----------
7030 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
7031 dnl programs need this test).
7032 dnl
7033 dnl This is really a Mac OS X 10.4.3 workaround.  Defining _POSIX_C_SOURCE
7034 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses).  Oddly, the struct
7035 dnl winsize declaration is left alone - we may revisit this if Apple choose to
7036 dnl break that part of the interface as well.
7037 AC_DEFUN([CF_SIGWINCH],
7038 [
7039 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
7040         AC_TRY_COMPILE([
7041 #include <sys/types.h>
7042 #include <sys/signal.h>
7043 ],[int x = SIGWINCH],
7044         [cf_cv_define_sigwinch=yes],
7045         [AC_TRY_COMPILE([
7046 #undef _XOPEN_SOURCE
7047 #undef _POSIX_SOURCE
7048 #undef _POSIX_C_SOURCE
7049 #include <sys/types.h>
7050 #include <sys/signal.h>
7051 ],[int x = SIGWINCH],
7052         [cf_cv_define_sigwinch=maybe],
7053         [cf_cv_define_sigwinch=no])
7054 ])
7055 ])
7056
7057 if test "$cf_cv_define_sigwinch" = maybe ; then
7058 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
7059 cf_cv_fixup_sigwinch=unknown
7060 cf_sigwinch=32
7061 while test $cf_sigwinch != 1
7062 do
7063         AC_TRY_COMPILE([
7064 #undef _XOPEN_SOURCE
7065 #undef _POSIX_SOURCE
7066 #undef _POSIX_C_SOURCE
7067 #include <sys/types.h>
7068 #include <sys/signal.h>
7069 ],[
7070 #if SIGWINCH != $cf_sigwinch
7071 make an error
7072 #endif
7073 int x = SIGWINCH],
7074         [cf_cv_fixup_sigwinch=$cf_sigwinch
7075          break])
7076
7077 cf_sigwinch=`expr $cf_sigwinch - 1`
7078 done
7079 ])
7080
7081         if test "$cf_cv_fixup_sigwinch" != unknown ; then
7082                 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
7083         fi
7084 fi
7085 ])dnl
7086 dnl ---------------------------------------------------------------------------
7087 dnl CF_SIG_ATOMIC_T version: 4 updated: 2020/01/18 12:30:44
7088 dnl ---------------
7089 dnl signal handler, but there are some gcc dependencies in that recommendation.
7090 dnl Try anyway.
7091 AC_DEFUN([CF_SIG_ATOMIC_T],
7092 [
7093 AC_MSG_CHECKING(for signal global datatype)
7094 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
7095         for cf_type in \
7096                 "volatile sig_atomic_t" \
7097                 "sig_atomic_t" \
7098                 "int"
7099         do
7100         AC_TRY_COMPILE([
7101 #include <sys/types.h>
7102 #include <signal.h>
7103 #include <stdio.h>
7104
7105 extern $cf_type x;
7106 $cf_type x;
7107 static void handler(int sig)
7108 {
7109         x = 5;
7110 }],
7111                 [signal(SIGINT, handler);
7112                  x = 1],
7113                 [cf_cv_sig_atomic_t=$cf_type],
7114                 [cf_cv_sig_atomic_t=no])
7115                 test "$cf_cv_sig_atomic_t" != no && break
7116         done
7117         ])
7118 AC_MSG_RESULT($cf_cv_sig_atomic_t)
7119 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
7120 ])dnl
7121 dnl ---------------------------------------------------------------------------
7122 dnl CF_SIZECHANGE version: 14 updated: 2018/06/20 20:23:13
7123 dnl -------------
7124 dnl Check for definitions & structures needed for window size-changing
7125 dnl
7126 dnl https://stackoverflow.com/questions/18878141/difference-between-structures-ttysize-and-winsize/50769952#50769952
7127 AC_DEFUN([CF_SIZECHANGE],
7128 [
7129 AC_REQUIRE([CF_STRUCT_TERMIOS])
7130 AC_CACHE_CHECK(declaration of size-change, cf_cv_sizechange,[
7131         cf_cv_sizechange=unknown
7132         cf_save_CPPFLAGS="$CPPFLAGS"
7133
7134 for cf_opts in "" "NEED_PTEM_H"
7135 do
7136
7137         CPPFLAGS="$cf_save_CPPFLAGS"
7138         if test -n "$cf_opts"
7139         then
7140                 CF_APPEND_TEXT(CPPFLAGS,-D$cf_opts)
7141         fi
7142         AC_TRY_COMPILE([#include <sys/types.h>
7143 #ifdef HAVE_TERMIOS_H
7144 #include <termios.h>
7145 #else
7146 #ifdef HAVE_TERMIO_H
7147 #include <termio.h>
7148 #endif
7149 #endif
7150
7151 #ifdef NEED_PTEM_H
7152 /* This is a workaround for SCO:  they neglected to define struct winsize in
7153  * termios.h -- it's only in termio.h and ptem.h
7154  */
7155 #include <sys/stream.h>
7156 #include <sys/ptem.h>
7157 #endif
7158
7159 #ifdef HAVE_SYS_IOCTL_H
7160 #include <sys/ioctl.h>
7161 #endif
7162 ],[
7163 #ifdef TIOCGSIZE
7164         struct ttysize win;     /* SunOS 3.0... */
7165         int y = win.ts_lines;
7166         int x = win.ts_cols;
7167 #else
7168 #ifdef TIOCGWINSZ
7169         struct winsize win;     /* everything else */
7170         int y = win.ws_row;
7171         int x = win.ws_col;
7172 #else
7173         no TIOCGSIZE or TIOCGWINSZ
7174 #endif /* TIOCGWINSZ */
7175 #endif /* TIOCGSIZE */
7176         ],
7177         [cf_cv_sizechange=yes],
7178         [cf_cv_sizechange=no])
7179
7180         CPPFLAGS="$cf_save_CPPFLAGS"
7181         if test "$cf_cv_sizechange" = yes ; then
7182                 echo "size-change succeeded ($cf_opts)" >&AC_FD_CC
7183                 test -n "$cf_opts" && cf_cv_sizechange="$cf_opts"
7184                 break
7185         fi
7186 done
7187 ])
7188 if test "$cf_cv_sizechange" != no ; then
7189         AC_DEFINE(HAVE_SIZECHANGE,1,[Define to 1 if sizechange declarations are provided])
7190         case $cf_cv_sizechange in
7191         (NEED*)
7192                 AC_DEFINE_UNQUOTED($cf_cv_sizechange )
7193                 ;;
7194         esac
7195 fi
7196 ])dnl
7197 dnl ---------------------------------------------------------------------------
7198 dnl CF_SRC_MODULES version: 31 updated: 2019/09/21 18:08:42
7199 dnl --------------
7200 dnl For each parameter, test if the source-directory exists, and if it contains
7201 dnl a 'modules' file.  If so, add to the list $cf_cv_src_modules which we'll
7202 dnl use in CF_LIB_RULES.
7203 dnl
7204 dnl This uses the configured value to make the lists SRC_SUBDIRS and
7205 dnl SUB_MAKEFILES which are used in the makefile-generation scheme.
7206 AC_DEFUN([CF_SRC_MODULES],
7207 [
7208 AC_REQUIRE([CF_CHECK_GNAT_VERSION])
7209 AC_MSG_CHECKING(for src modules)
7210
7211 # dependencies and linker-arguments for test-programs
7212 TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEPS"
7213 TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEP2"
7214 if test "$DFT_LWR_MODEL" = "libtool"; then
7215         TEST_ARGS="${TEST_DEPS}"
7216         TEST_ARG2="${TEST_DEP2}"
7217 else
7218         TEST_ARGS="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARGS"
7219         TEST_ARG2="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARG2"
7220 fi
7221
7222 PC_MODULES_TO_MAKE="ncurses${USE_ARG_SUFFIX}"
7223 cf_cv_src_modules=
7224 for cf_dir in $1
7225 do
7226         if test -f $srcdir/$cf_dir/modules; then
7227
7228                 # We may/may not have tack in the distribution, though the
7229                 # makefile is.
7230                 if test $cf_dir = tack ; then
7231                         if test "x$cf_with_tack" != "xyes"; then
7232                                 continue
7233                         fi
7234                 fi
7235
7236                 if test -z "$cf_cv_src_modules"; then
7237                         cf_cv_src_modules=$cf_dir
7238                 else
7239                         cf_cv_src_modules="$cf_cv_src_modules $cf_dir"
7240                 fi
7241
7242                 # Make the ncurses_cfg.h file record the library interface files as
7243                 # well.  These are header files that are the same name as their
7244                 # directory.  Ncurses is the only library that does not follow
7245                 # that pattern.
7246                 if test $cf_dir = tack ; then
7247                         continue
7248                 elif test -f $srcdir/${cf_dir}/${cf_dir}.h; then
7249                         CF_UPPER(cf_have_include,$cf_dir)
7250                         AC_DEFINE_UNQUOTED(HAVE_${cf_have_include}_H)
7251                         AC_DEFINE_UNQUOTED(HAVE_LIB${cf_have_include})
7252                         TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${cf_dir}${DFT_DEP_SUFFIX} $TEST_DEPS"
7253                         TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${cf_dir}${DFT_DEP_SUFFIX} $TEST_DEP2"
7254                         if test "$DFT_LWR_MODEL" = "libtool"; then
7255                                 TEST_ARGS="${TEST_DEPS}"
7256                                 TEST_ARG2="${TEST_DEP2}"
7257                         else
7258                                 TEST_ARGS="-l${cf_dir}${USE_ARG_SUFFIX} $TEST_ARGS"
7259                                 TEST_ARG2="-l${cf_dir}${USE_ARG_SUFFIX} $TEST_ARG2"
7260                         fi
7261                         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ${cf_dir}${USE_ARG_SUFFIX}"
7262                 fi
7263         fi
7264 done
7265 AC_MSG_RESULT($cf_cv_src_modules)
7266
7267 TEST_ARGS="-L${LIB_DIR} $TEST_ARGS"
7268 TEST_ARG2="-L${LIB_2ND} $TEST_ARG2"
7269
7270 AC_SUBST(TEST_ARGS)
7271 AC_SUBST(TEST_DEPS)
7272
7273 AC_SUBST(TEST_ARG2)
7274 AC_SUBST(TEST_DEP2)
7275
7276 SRC_SUBDIRS=
7277 if test "x$cf_with_manpages" != xno ; then
7278         SRC_SUBDIRS="$SRC_SUBDIRS man"
7279 fi
7280 SRC_SUBDIRS="$SRC_SUBDIRS include"
7281 for cf_dir in $cf_cv_src_modules
7282 do
7283         SRC_SUBDIRS="$SRC_SUBDIRS $cf_dir"
7284 done
7285 if test "x$cf_with_tests" != "xno" ; then
7286         SRC_SUBDIRS="$SRC_SUBDIRS test"
7287 fi
7288 # always make this, to install the ncurses-config script
7289 SRC_SUBDIRS="$SRC_SUBDIRS misc"
7290 if test "$cf_with_cxx_binding" != no; then
7291         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ncurses++${USE_ARG_SUFFIX}"
7292         SRC_SUBDIRS="$SRC_SUBDIRS c++"
7293 fi
7294
7295 test "x$with_termlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TINFO_ARG_SUFFIX"
7296 test "x$with_ticlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TICS_ARG_SUFFIX"
7297
7298 AC_SUBST(PC_MODULES_TO_MAKE)
7299
7300 ADA_SUBDIRS=
7301 if test "x$cf_with_ada" = "xyes" && test "x$cf_cv_prog_gnat_correct" = xyes && test -f $srcdir/Ada95/Makefile.in; then
7302         SRC_SUBDIRS="$SRC_SUBDIRS Ada95"
7303         ADA_SUBDIRS="gen src"
7304         if test "x$cf_with_tests" != "xno" ; then
7305                 ADA_SUBDIRS="$ADA_SUBDIRS samples"
7306         fi
7307 fi
7308
7309 SUB_MAKEFILES=
7310 for cf_dir in $SRC_SUBDIRS
7311 do
7312         SUB_MAKEFILES="$SUB_MAKEFILES $cf_dir/Makefile"
7313 done
7314
7315 if test -n "$ADA_SUBDIRS"; then
7316         for cf_dir in $ADA_SUBDIRS
7317         do
7318                 SUB_MAKEFILES="$SUB_MAKEFILES Ada95/$cf_dir/Makefile"
7319         done
7320         AC_SUBST(ADA_SUBDIRS)
7321 fi
7322 ])dnl
7323 dnl ---------------------------------------------------------------------------
7324 dnl CF_STDCPP_LIBRARY version: 11 updated: 2015/10/17 19:03:33
7325 dnl -----------------
7326 dnl Check for -lstdc++, which is GNU's standard C++ library.
7327 dnl If $CXXLIBS is set, add that to the libraries used for test-linking.
7328 dnl If -lstdc++ was not already added to $LIBS or $CXXLIBS, and is needed,
7329 dnl add it to $CXXLIBS.
7330 AC_DEFUN([CF_STDCPP_LIBRARY],
7331 [
7332 if test -n "$GXX" ; then
7333
7334         cf_save="$LIBS"
7335         LIBS="$LIBS $CXXLIBS"
7336         AC_MSG_CHECKING(if we already have C++ library)
7337         AC_TRY_LINK([
7338                         #include <iostream>],[
7339                         std::cout << "Hello World!" << std::endl;],
7340                 [cf_have_libstdcpp=yes],
7341                 [cf_have_libstdcpp=no])
7342         AC_MSG_RESULT($cf_have_libstdcpp)
7343         LIBS="$cf_save"
7344
7345         if test $cf_have_libstdcpp != yes
7346         then
7347                 case $cf_cv_system_name in
7348                 (os2*)
7349                         if test -z "`g++ -dM -E - < /dev/null | grep __KLIBC__`"; then
7350                                 cf_stdcpp_libname=stdcpp
7351                         else
7352                                 cf_stdcpp_libname=stdc++
7353                         fi
7354                         ;;
7355                 (*)
7356                         cf_stdcpp_libname=stdc++
7357                         ;;
7358                 esac
7359
7360                 AC_CACHE_CHECK(for library $cf_stdcpp_libname,cf_cv_libstdcpp,[
7361                         cf_save="$LIBS"
7362                         LIBS="$LIBS $CXXLIBS"
7363                         CF_ADD_LIB($cf_stdcpp_libname)
7364                 AC_TRY_LINK([
7365                                 #include <iostream>],[
7366                                 std::cout << "Hello World!" << std::endl;],
7367                         [cf_cv_libstdcpp=yes],
7368                         [cf_cv_libstdcpp=no])
7369                         LIBS="$cf_save"
7370                 ])
7371                 test "$cf_cv_libstdcpp" = yes && { CF_ADD_LIB($cf_stdcpp_libname,CXXLIBS) }
7372         fi
7373 fi
7374 ])dnl
7375 dnl ---------------------------------------------------------------------------
7376 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
7377 dnl --------------
7378 dnl     Remove "-g" option from the compiler options
7379 AC_DEFUN([CF_STRIP_G_OPT],
7380 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
7381 dnl ---------------------------------------------------------------------------
7382 dnl CF_STRUCT_SIGACTION version: 5 updated: 2012/10/06 17:56:13
7383 dnl -------------------
7384 dnl Check if we need _POSIX_SOURCE defined to use struct sigaction.  We'll only
7385 dnl do this if we've found the sigaction function.
7386 AC_DEFUN([CF_STRUCT_SIGACTION],[
7387 AC_REQUIRE([CF_XOPEN_SOURCE])
7388
7389 if test "$ac_cv_func_sigaction" = yes; then
7390 AC_MSG_CHECKING(whether sigaction needs _POSIX_SOURCE)
7391 AC_TRY_COMPILE([
7392 #include <sys/types.h>
7393 #include <signal.h>],
7394         [struct sigaction act],
7395         [sigact_bad=no],
7396         [
7397 AC_TRY_COMPILE([
7398 #define _POSIX_SOURCE
7399 #include <sys/types.h>
7400 #include <signal.h>],
7401         [struct sigaction act],
7402         [sigact_bad=yes
7403          AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE])],
7404          [sigact_bad=unknown])])
7405 AC_MSG_RESULT($sigact_bad)
7406 fi
7407 ])dnl
7408 dnl ---------------------------------------------------------------------------
7409 dnl CF_STRUCT_TERMIOS version: 9 updated: 2018/06/08 21:57:23
7410 dnl -----------------
7411 dnl Some machines require _POSIX_SOURCE to completely define struct termios.
7412 AC_DEFUN([CF_STRUCT_TERMIOS],[
7413 AC_REQUIRE([CF_XOPEN_SOURCE])
7414
7415 AC_CHECK_HEADERS( \
7416 termio.h \
7417 termios.h \
7418 unistd.h \
7419 sys/ioctl.h \
7420 sys/termio.h \
7421 )
7422
7423 if test "$ac_cv_header_termios_h" = yes ; then
7424         case "$CFLAGS $CPPFLAGS" in
7425         (*-D_POSIX_SOURCE*)
7426                 termios_bad=dunno ;;
7427         (*)     termios_bad=maybe ;;
7428         esac
7429         if test "$termios_bad" = maybe ; then
7430         AC_MSG_CHECKING(whether termios.h needs _POSIX_SOURCE)
7431         AC_TRY_COMPILE([#include <termios.h>],
7432                 [struct termios foo; int x = foo.c_iflag],
7433                 termios_bad=no, [
7434                 AC_TRY_COMPILE([
7435 #define _POSIX_SOURCE
7436 #include <termios.h>],
7437                         [struct termios foo; int x = foo.c_iflag],
7438                         termios_bad=unknown,
7439                         termios_bad=yes AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE]))
7440                         ])
7441         AC_MSG_RESULT($termios_bad)
7442         fi
7443 fi
7444 ])dnl
7445 dnl ---------------------------------------------------------------------------
7446 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
7447 dnl --------------
7448 dnl Construct a search-list for a nonstandard header/lib-file
7449 dnl     $1 = the variable to return as result
7450 dnl     $2 = the package name
7451 dnl     $3 = the subdirectory, e.g., bin, include or lib
7452 AC_DEFUN([CF_SUBDIR_PATH],
7453 [
7454 $1=
7455
7456 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
7457
7458 for cf_subdir_prefix in \
7459         /usr \
7460         /usr/local \
7461         /usr/pkg \
7462         /opt \
7463         /opt/local \
7464         [$]HOME
7465 do
7466         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
7467 done
7468 ])dnl
7469 dnl ---------------------------------------------------------------------------
7470 dnl CF_SUBST_IF version: 2 updated: 2006/06/17 12:33:03
7471 dnl -----------
7472 dnl     Shorthand macro for substituting things that the user may override
7473 dnl     with an environment variable.
7474 dnl
7475 dnl     $1 = condition to pass to "test"
7476 dnl     $2 = environment variable
7477 dnl     $3 = value if the test succeeds
7478 dnl     $4 = value if the test fails
7479 AC_DEFUN([CF_SUBST_IF],
7480 [
7481 if test $1 ; then
7482         $2=$3
7483 ifelse($4,,,[else
7484         $2=$4])
7485 fi
7486 AC_SUBST($2)
7487 ])dnl
7488 dnl ---------------------------------------------------------------------------
7489 dnl CF_SUBST_NCURSES_VERSION version: 8 updated: 2006/09/16 11:40:59
7490 dnl ------------------------
7491 dnl Get the version-number for use in shared-library naming, etc.
7492 AC_DEFUN([CF_SUBST_NCURSES_VERSION],
7493 [
7494 AC_REQUIRE([CF_PROG_EGREP])
7495 NCURSES_MAJOR="`$ac_cv_prog_egrep '^NCURSES_MAJOR[[     ]]*=' $srcdir/dist.mk | sed -e 's/^[[^0-9]]*//'`"
7496 NCURSES_MINOR="`$ac_cv_prog_egrep '^NCURSES_MINOR[[     ]]*=' $srcdir/dist.mk | sed -e 's/^[[^0-9]]*//'`"
7497 NCURSES_PATCH="`$ac_cv_prog_egrep '^NCURSES_PATCH[[     ]]*=' $srcdir/dist.mk | sed -e 's/^[[^0-9]]*//'`"
7498 cf_cv_abi_version=${NCURSES_MAJOR}
7499 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
7500 dnl Show the computed version, for logging
7501 cf_cv_timestamp=`date`
7502 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
7503 dnl We need these values in the generated headers
7504 AC_SUBST(NCURSES_MAJOR)
7505 AC_SUBST(NCURSES_MINOR)
7506 AC_SUBST(NCURSES_PATCH)
7507 dnl We need these values in the generated makefiles
7508 AC_SUBST(cf_cv_rel_version)
7509 AC_SUBST(cf_cv_abi_version)
7510 AC_SUBST(cf_cv_builtin_bool)
7511 AC_SUBST(cf_cv_header_stdbool_h)
7512 AC_SUBST(cf_cv_type_of_bool)dnl
7513 ])dnl
7514 dnl ---------------------------------------------------------------------------
7515 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
7516 dnl ------------------
7517 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
7518 dnl older SCO configurations.
7519 AC_DEFUN([CF_SYS_TIME_SELECT],
7520 [
7521 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
7522 AC_CACHE_VAL(cf_cv_sys_time_select,[
7523 AC_TRY_COMPILE([
7524 #include <sys/types.h>
7525 #ifdef HAVE_SYS_TIME_H
7526 #include <sys/time.h>
7527 #endif
7528 #ifdef HAVE_SYS_SELECT_H
7529 #include <sys/select.h>
7530 #endif
7531 ],[],[cf_cv_sys_time_select=yes],
7532          [cf_cv_sys_time_select=no])
7533          ])
7534 AC_MSG_RESULT($cf_cv_sys_time_select)
7535 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
7536 ])dnl
7537 dnl ---------------------------------------------------------------------------
7538 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
7539 dnl ---------------
7540 dnl Define a top_builddir symbol, for applications that need an absolute path.
7541 AC_DEFUN([CF_TOP_BUILDDIR],
7542 [
7543 top_builddir=ifelse($1,,`pwd`,$1)
7544 AC_SUBST(top_builddir)
7545 ])dnl
7546 dnl ---------------------------------------------------------------------------
7547 dnl CF_TRY_PKG_CONFIG version: 5 updated: 2013/07/06 21:27:06
7548 dnl -----------------
7549 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
7550 dnl available in that form.
7551 dnl
7552 dnl $1 = package name
7553 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
7554 dnl $3 = logic to use if pkg-config does not have the package
7555 AC_DEFUN([CF_TRY_PKG_CONFIG],[
7556 AC_REQUIRE([CF_PKG_CONFIG])
7557
7558 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists $1; then
7559         CF_VERBOSE(found package $1)
7560         cf_pkgconfig_incs="`$PKG_CONFIG --cflags $1 2>/dev/null`"
7561         cf_pkgconfig_libs="`$PKG_CONFIG --libs   $1 2>/dev/null`"
7562         CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
7563         CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
7564         CF_ADD_CFLAGS($cf_pkgconfig_incs)
7565         CF_ADD_LIBS($cf_pkgconfig_libs)
7566         ifelse([$2],,:,[$2])
7567 else
7568         cf_pkgconfig_incs=
7569         cf_pkgconfig_libs=
7570         ifelse([$3],,:,[$3])
7571 fi
7572 ])
7573 dnl ---------------------------------------------------------------------------
7574 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
7575 dnl -------------------
7576 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
7577 dnl can define it successfully.
7578 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
7579 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
7580         AC_TRY_COMPILE([
7581 #include <stdlib.h>
7582 #include <string.h>
7583 #include <sys/types.h>
7584 ],[
7585 #ifndef _XOPEN_SOURCE
7586 make an error
7587 #endif],
7588         [cf_cv_xopen_source=no],
7589         [cf_save="$CPPFLAGS"
7590          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
7591          AC_TRY_COMPILE([
7592 #include <stdlib.h>
7593 #include <string.h>
7594 #include <sys/types.h>
7595 ],[
7596 #ifdef _XOPEN_SOURCE
7597 make an error
7598 #endif],
7599         [cf_cv_xopen_source=no],
7600         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
7601         CPPFLAGS="$cf_save"
7602         ])
7603 ])
7604
7605 if test "$cf_cv_xopen_source" != no ; then
7606         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
7607         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
7608         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
7609         CF_ADD_CFLAGS($cf_temp_xopen_source)
7610 fi
7611 ])
7612 dnl ---------------------------------------------------------------------------
7613 dnl CF_TYPEOF_CHTYPE version: 10 updated: 2017/01/21 11:06:25
7614 dnl ----------------
7615 dnl Determine the type we should use for chtype (and attr_t, which is treated
7616 dnl as the same thing).  We want around 32 bits, so on most machines want a
7617 dnl long, but on newer 64-bit machines, probably want an int.  If we're using
7618 dnl wide characters, we have to have a type compatible with that, as well.
7619 AC_DEFUN([CF_TYPEOF_CHTYPE],
7620 [
7621 AC_MSG_CHECKING([for type of chtype])
7622 AC_CACHE_VAL(cf_cv_typeof_chtype,[
7623                 AC_TRY_RUN([
7624 #define WANT_BITS 31
7625 #include <stdio.h>
7626 int main(void)
7627 {
7628         FILE *fp = fopen("cf_test.out", "w");
7629         if (fp != 0) {
7630                 char *result = "long";
7631                 if (sizeof(unsigned long) > sizeof(unsigned int)) {
7632                         int n;
7633                         unsigned int x, y;
7634                         for (n = 0; n < WANT_BITS; n++) {
7635                                 x = (1 << n);
7636                                 y = (x >> n);
7637                                 if (y != 1 || x == 0) {
7638                                         x = 0;
7639                                         break;
7640                                 }
7641                         }
7642                         /*
7643                          * If x is nonzero, an int is big enough for the bits
7644                          * that we want.
7645                          */
7646                         result = (x != 0) ? "int" : "long";
7647                 }
7648                 fputs(result, fp);
7649                 fclose(fp);
7650         }
7651         ${cf_cv_main_return:-return}(0);
7652 }
7653                 ],
7654                 [cf_cv_typeof_chtype=`cat cf_test.out`],
7655                 [cf_cv_typeof_chtype=long],
7656                 [cf_cv_typeof_chtype=long])
7657                 rm -f cf_test.out
7658         ])
7659 AC_MSG_RESULT($cf_cv_typeof_chtype)
7660
7661 AC_SUBST(cf_cv_typeof_chtype)
7662 AC_DEFINE_UNQUOTED(TYPEOF_CHTYPE,$cf_cv_typeof_chtype,[Define to actual type if needed for chtype])
7663 ])dnl
7664 dnl ---------------------------------------------------------------------------
7665 dnl CF_TYPE_SIGACTION version: 4 updated: 2012/10/06 17:56:13
7666 dnl -----------------
7667 dnl
7668 AC_DEFUN([CF_TYPE_SIGACTION],
7669 [
7670 AC_MSG_CHECKING([for type sigaction_t])
7671 AC_CACHE_VAL(cf_cv_type_sigaction,[
7672         AC_TRY_COMPILE([
7673 #include <signal.h>],
7674                 [sigaction_t x],
7675                 [cf_cv_type_sigaction=yes],
7676                 [cf_cv_type_sigaction=no])])
7677 AC_MSG_RESULT($cf_cv_type_sigaction)
7678 test "$cf_cv_type_sigaction" = yes && AC_DEFINE(HAVE_TYPE_SIGACTION,1,[Define to 1 if we have the sigaction_t type])
7679 ])dnl
7680 dnl ---------------------------------------------------------------------------
7681 dnl CF_UNSIGNED_LITERALS version: 2 updated: 1998/02/07 22:10:16
7682 dnl --------------------
7683 dnl Test if the compiler supports 'U' and 'L' suffixes.  Only old compilers
7684 dnl won't, but they're still there.
7685 AC_DEFUN([CF_UNSIGNED_LITERALS],
7686 [
7687 AC_MSG_CHECKING([if unsigned literals are legal])
7688 AC_CACHE_VAL(cf_cv_unsigned_literals,[
7689         AC_TRY_COMPILE([],[long x = 1L + 1UL + 1U + 1],
7690                 [cf_cv_unsigned_literals=yes],
7691                 [cf_cv_unsigned_literals=no])
7692         ])
7693 AC_MSG_RESULT($cf_cv_unsigned_literals)
7694 ])dnl
7695 dnl ---------------------------------------------------------------------------
7696 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
7697 dnl --------
7698 dnl Make an uppercase version of a variable
7699 dnl $1=uppercase($2)
7700 AC_DEFUN([CF_UPPER],
7701 [
7702 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
7703 ])dnl
7704 dnl ---------------------------------------------------------------------------
7705 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
7706 dnl -----------
7707 dnl Check for multibyte support, and if not found, utf8 compatibility library
7708 AC_DEFUN([CF_UTF8_LIB],
7709 [
7710 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
7711         cf_save_LIBS="$LIBS"
7712         AC_TRY_LINK([
7713 #include <stdlib.h>],[putwc(0,0);],
7714         [cf_cv_utf8_lib=yes],
7715         [CF_FIND_LINKAGE([
7716 #include <libutf8.h>],[putwc(0,0);],utf8,
7717                 [cf_cv_utf8_lib=add-on],
7718                 [cf_cv_utf8_lib=no])
7719 ])])
7720
7721 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
7722 # ncurses/ncursesw:
7723 if test "$cf_cv_utf8_lib" = "add-on" ; then
7724         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
7725         CF_ADD_INCDIR($cf_cv_header_path_utf8)
7726         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
7727         CF_ADD_LIBS($cf_cv_library_file_utf8)
7728 fi
7729 ])dnl
7730 dnl ---------------------------------------------------------------------------
7731 dnl CF_VA_COPY version: 6 updated: 2018/12/04 18:14:25
7732 dnl ----------
7733 dnl check for va_copy, part of stdarg.h starting with ISO C 1999.
7734 dnl Also, workaround for glibc's __va_copy, by checking for both.
7735 dnl Finally, try to accommodate pre-ISO C 1999 headers.
7736 AC_DEFUN([CF_VA_COPY],[
7737 AC_CACHE_CHECK(for va_copy, cf_cv_have_va_copy,[
7738 AC_TRY_LINK([
7739 #include <stdarg.h>
7740 ],[
7741         static va_list dst;
7742         static va_list src;
7743         va_copy(dst, src)],
7744         cf_cv_have_va_copy=yes,
7745         cf_cv_have_va_copy=no)])
7746
7747 if test "$cf_cv_have_va_copy" = yes;
7748 then
7749         AC_DEFINE(HAVE_VA_COPY,1,[Define to 1 if we have va_copy])
7750 else # !cf_cv_have_va_copy
7751
7752 AC_CACHE_CHECK(for __va_copy, cf_cv_have___va_copy,[
7753 AC_TRY_LINK([
7754 #include <stdarg.h>
7755 ],[
7756         static va_list dst;
7757         static va_list src;
7758         __va_copy(dst, src)],
7759         cf_cv_have___va_copy=yes,
7760         cf_cv_have___va_copy=no)])
7761
7762 if test "$cf_cv_have___va_copy" = yes
7763 then
7764         AC_DEFINE(HAVE___VA_COPY,1,[Define to 1 if we have __va_copy])
7765 else # !cf_cv_have___va_copy
7766
7767 AC_CACHE_CHECK(for __builtin_va_copy, cf_cv_have___builtin_va_copy,[
7768 AC_TRY_LINK([
7769 #include <stdarg.h>
7770 ],[
7771         static va_list dst;
7772         static va_list src;
7773         __builtin_va_copy(dst, src)],
7774         cf_cv_have___builtin_va_copy=yes,
7775         cf_cv_have___builtin_va_copy=no)])
7776
7777 test "$cf_cv_have___builtin_va_copy" = yes &&
7778         AC_DEFINE(HAVE___BUILTIN_VA_COPY,1,[Define to 1 if we have __builtin_va_copy])
7779
7780 fi # cf_cv_have___va_copy
7781
7782 fi # cf_cv_have_va_copy
7783
7784 case "${cf_cv_have_va_copy}${cf_cv_have___va_copy}${cf_cv_have___builtin_va_copy}" in
7785 (*yes*)
7786         ;;
7787
7788 (*)
7789         AC_CACHE_CHECK(if we can simply copy va_list, cf_cv_pointer_va_list,[
7790 AC_TRY_LINK([
7791 #include <stdarg.h>
7792 ],[
7793         va_list dst;
7794         va_list src;
7795         dst = src],
7796         cf_cv_pointer_va_list=yes,
7797         cf_cv_pointer_va_list=no)])
7798
7799         if test "$cf_cv_pointer_va_list" = no
7800         then
7801                 AC_CACHE_CHECK(if we can copy va_list indirectly, cf_cv_array_va_list,[
7802 AC_TRY_LINK([
7803 #include <stdarg.h>
7804 ],[
7805         va_list dst;
7806         va_list src;
7807         *dst = *src],
7808                         cf_cv_array_va_list=yes,
7809                         cf_cv_array_va_list=no)])
7810                 test "$cf_cv_array_va_list" = yes && AC_DEFINE(ARRAY_VA_LIST,1,[Define to 1 if we can copy va_list indirectly])
7811         fi
7812         ;;
7813 esac
7814 ])
7815 dnl ---------------------------------------------------------------------------
7816 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
7817 dnl ----------
7818 dnl Use AC_VERBOSE w/o the warnings
7819 AC_DEFUN([CF_VERBOSE],
7820 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
7821 CF_MSG_LOG([$1])
7822 ])dnl
7823 dnl ---------------------------------------------------------------------------
7824 dnl CF_VERSION_INFO version: 7 updated: 2015/04/17 21:13:04
7825 dnl ---------------
7826 dnl Define several useful symbols derived from the VERSION file.  A separate
7827 dnl file is preferred to embedding the version numbers in various scripts.
7828 dnl (automake is a textbook-example of why the latter is a bad idea, but there
7829 dnl are others).
7830 dnl
7831 dnl The file contents are:
7832 dnl     libtool-version release-version patch-version
7833 dnl or
7834 dnl     release-version
7835 dnl where
7836 dnl     libtool-version (see ?) consists of 3 integers separated by '.'
7837 dnl     release-version consists of a major version and minor version
7838 dnl             separated by '.', optionally followed by a patch-version
7839 dnl             separated by '-'.  The minor version need not be an
7840 dnl             integer (but it is preferred).
7841 dnl     patch-version is an integer in the form yyyymmdd, so ifdef's and
7842 dnl             scripts can easily compare versions.
7843 dnl
7844 dnl If libtool is used, the first form is required, since CF_WITH_LIBTOOL
7845 dnl simply extracts the first field using 'cut -f1'.
7846 dnl
7847 dnl Optional parameters:
7848 dnl $1 = internal name for package
7849 dnl $2 = external name for package
7850 AC_DEFUN([CF_VERSION_INFO],
7851 [
7852 if test -f $srcdir/VERSION ; then
7853         AC_MSG_CHECKING(for package version)
7854
7855         # if there are not enough fields, cut returns the last one...
7856         cf_field1=`sed -e '2,$d' $srcdir/VERSION|cut -f1`
7857         cf_field2=`sed -e '2,$d' $srcdir/VERSION|cut -f2`
7858         cf_field3=`sed -e '2,$d' $srcdir/VERSION|cut -f3`
7859
7860         # this is how CF_BUNDLED_INTL uses $VERSION:
7861         VERSION="$cf_field1"
7862
7863         VERSION_MAJOR=`echo "$cf_field2" | sed -e 's/\..*//'`
7864         test -z "$VERSION_MAJOR" && AC_MSG_ERROR(missing major-version)
7865
7866         VERSION_MINOR=`echo "$cf_field2" | sed -e 's/^[[^.]]*\.//' -e 's/-.*//'`
7867         test -z "$VERSION_MINOR" && AC_MSG_ERROR(missing minor-version)
7868
7869         AC_MSG_RESULT(${VERSION_MAJOR}.${VERSION_MINOR})
7870
7871         AC_MSG_CHECKING(for package patch date)
7872         VERSION_PATCH=`echo "$cf_field3" | sed -e 's/^[[^-]]*-//'`
7873         case .$VERSION_PATCH in
7874         (.)
7875                 AC_MSG_ERROR(missing patch-date $VERSION_PATCH)
7876                 ;;
7877         (.[[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]])
7878                 ;;
7879         (*)
7880                 AC_MSG_ERROR(illegal patch-date $VERSION_PATCH)
7881                 ;;
7882         esac
7883         AC_MSG_RESULT($VERSION_PATCH)
7884 else
7885         AC_MSG_ERROR(did not find $srcdir/VERSION)
7886 fi
7887
7888 # show the actual data that we have for versions:
7889 CF_VERBOSE(ABI VERSION $VERSION)
7890 CF_VERBOSE(VERSION_MAJOR $VERSION_MAJOR)
7891 CF_VERBOSE(VERSION_MINOR $VERSION_MINOR)
7892 CF_VERBOSE(VERSION_PATCH $VERSION_PATCH)
7893
7894 AC_SUBST(VERSION)
7895 AC_SUBST(VERSION_MAJOR)
7896 AC_SUBST(VERSION_MINOR)
7897 AC_SUBST(VERSION_PATCH)
7898
7899 dnl if a package name is given, define its corresponding version info.  We
7900 dnl need the package name to ensure that the defined symbols are unique.
7901 ifelse($1,,,[
7902         cf_PACKAGE=$1
7903         PACKAGE=ifelse($2,,$1,$2)
7904         AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",[Define to the package-name])
7905         AC_SUBST(PACKAGE)
7906         CF_UPPER(cf_PACKAGE,$cf_PACKAGE)
7907         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_VERSION,"${VERSION_MAJOR}.${VERSION_MINOR}")
7908         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_PATCHDATE,${VERSION_PATCH})
7909 ])
7910 ])dnl
7911 dnl ---------------------------------------------------------------------------
7912 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
7913 dnl -------------
7914 dnl Check if type wide-character type $1 is declared, and if so, which header
7915 dnl file is needed.  The second parameter is used to set a shell variable when
7916 dnl the type is not found.  The first parameter sets a shell variable for the
7917 dnl opposite sense.
7918 AC_DEFUN([CF_WCHAR_TYPE],
7919 [
7920 # This is needed on Tru64 5.0 to declare $1
7921 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
7922 AC_TRY_COMPILE([
7923 #include <stdlib.h>
7924 #include <stdarg.h>
7925 #include <stdio.h>
7926 #ifdef HAVE_LIBUTF8_H
7927 #include <libutf8.h>
7928 #endif],
7929         [$1 state],
7930         [cf_cv_$1=no],
7931         [AC_TRY_COMPILE([
7932 #include <stdlib.h>
7933 #include <stdarg.h>
7934 #include <stdio.h>
7935 #include <wchar.h>
7936 #ifdef HAVE_LIBUTF8_H
7937 #include <libutf8.h>
7938 #endif],
7939         [$1 value],
7940         [cf_cv_$1=yes],
7941         [cf_cv_$1=unknown])])])
7942
7943 if test "$cf_cv_$1" = yes ; then
7944         AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
7945         NEED_WCHAR_H=1
7946 fi
7947
7948 ifelse([$2],,,[
7949 # if we do not find $1 in either place, use substitution to provide a fallback.
7950 if test "$cf_cv_$1" = unknown ; then
7951         $2=1
7952 fi
7953 ])
7954 ifelse($3,,,[
7955 # if we find $1 in either place, use substitution to provide a fallback.
7956 if test "$cf_cv_$1" != unknown ; then
7957         $3=1
7958 fi
7959 ])
7960 ])dnl
7961 dnl ---------------------------------------------------------------------------
7962 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
7963 dnl ---------------
7964 dnl Check for compiler-support for weak symbols.
7965 dnl This works with "recent" gcc.
7966 AC_DEFUN([CF_WEAK_SYMBOLS],[
7967 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
7968
7969 AC_TRY_COMPILE([
7970 #include <stdio.h>],
7971 [
7972 #if defined(__GNUC__)
7973 #  if defined __USE_ISOC99
7974 #    define _cat_pragma(exp)    _Pragma(#exp)
7975 #    define _weak_pragma(exp)   _cat_pragma(weak name)
7976 #  else
7977 #    define _weak_pragma(exp)
7978 #  endif
7979 #  define _declare(name)        __extension__ extern __typeof__(name) name
7980 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
7981 #endif
7982
7983 weak_symbol(fopen);
7984 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
7985 ])
7986 ])dnl
7987 dnl ---------------------------------------------------------------------------
7988 dnl CF_WITH_ABI_VERSION version: 3 updated: 2015/06/06 16:10:11
7989 dnl -------------------
7990 dnl Allow library's ABI to be overridden.  Generally this happens when a
7991 dnl packager has incremented the ABI past that used in the original package,
7992 dnl and wishes to keep doing this.
7993 dnl
7994 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
7995 dnl symbol.
7996 AC_DEFUN([CF_WITH_ABI_VERSION],[
7997 test -z "$cf_cv_abi_version" && cf_cv_abi_version=0
7998 AC_ARG_WITH(abi-version,
7999 [  --with-abi-version=XXX  override derived ABI version],[
8000         if test "x$cf_cv_abi_version" != "x$withval"
8001         then
8002                 AC_MSG_WARN(overriding ABI version $cf_cv_abi_version to $withval)
8003                 case $cf_cv_rel_version in
8004                 (5.*)
8005                         cf_cv_rel_version=$withval.0
8006                         ;;
8007                 (6.*)
8008                         cf_cv_rel_version=$withval.9    # FIXME: should be 10 as of 6.0 release
8009                         ;;
8010                 esac
8011         fi
8012         cf_cv_abi_version=$withval])
8013         CF_NUMBER_SYNTAX($cf_cv_abi_version,ABI version)
8014 ifelse($1,,,[
8015 $1_ABI=$cf_cv_abi_version
8016 ])
8017 ])dnl
8018 dnl ---------------------------------------------------------------------------
8019 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
8020 dnl --------------------
8021 dnl Command-line option to specify the Ada95 compiler.
8022 AC_DEFUN([CF_WITH_ADA_COMPILER],[
8023 AC_MSG_CHECKING(for ada-compiler)
8024 AC_ARG_WITH(ada-compiler,
8025         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
8026         [cf_ada_compiler=$withval],
8027         [cf_ada_compiler=gnatmake])
8028 AC_SUBST(cf_ada_compiler)
8029 AC_MSG_RESULT($cf_ada_compiler)
8030 ])dnl
8031 dnl ---------------------------------------------------------------------------
8032 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
8033 dnl -------------------
8034 dnl Command-line option to specify where Ada includes will install.
8035 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
8036 AC_MSG_CHECKING(for ada-include)
8037 CF_WITH_PATH(ada-include,
8038    [  --with-ada-include=DIR  Ada includes are in DIR],
8039    ADA_INCLUDE,
8040    PREFIX/share/ada/adainclude,
8041    [$]prefix/share/ada/adainclude)
8042 AC_SUBST(ADA_INCLUDE)
8043 AC_MSG_RESULT($ADA_INCLUDE)
8044 ])dnl
8045 dnl ---------------------------------------------------------------------------
8046 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
8047 dnl -------------------
8048 dnl CF_WITH_ADA_LIBNAME
8049 dnl -------------------
8050 dnl Command-line option to specify how to name the resulting Ada library.
8051 dnl $1 = default value
8052 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
8053 AC_MSG_CHECKING(for ada-libname)
8054 AC_ARG_WITH(ada-libname,
8055    [  --with-ada-libname=XXX  override default Ada library-name],
8056    ADA_LIBNAME=[$]withval,
8057    ADA_LIBNAME=$1)
8058 case "x$ADA_LIBNAME" in
8059 (x|xyes|xno)
8060         ADA_LIBNAME=$1
8061         ;;
8062 esac
8063 AC_SUBST(ADA_LIBNAME)
8064 AC_MSG_RESULT($ADA_LIBNAME)
8065 ])dnl
8066 dnl ---------------------------------------------------------------------------
8067 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
8068 dnl -------------------
8069 dnl Command-line option to specify where Ada objects will install.
8070 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
8071 AC_MSG_CHECKING(for ada-objects)
8072 CF_WITH_PATH(ada-objects,
8073    [  --with-ada-objects=DIR  Ada objects are in DIR],
8074    ADA_OBJECTS,
8075    PREFIX/lib/ada/adalib,
8076    [$]prefix/lib/ada/adalib)
8077 AC_SUBST(ADA_OBJECTS)
8078 AC_MSG_RESULT($ADA_OBJECTS)
8079 ])dnl
8080 dnl ---------------------------------------------------------------------------
8081 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
8082 dnl ---------------------
8083 dnl Command-line option to specify if an Ada95 shared-library should be built,
8084 dnl and optionally what its soname should be.
8085 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
8086 AC_REQUIRE([CF_GNAT_PROJECTS])
8087 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
8088 AC_ARG_WITH(ada-sharedlib,
8089         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
8090         [with_ada_sharedlib=$withval],
8091         [with_ada_sharedlib=no])
8092 AC_MSG_RESULT($with_ada_sharedlib)
8093
8094 if test "x$with_ada_sharedlib" != xno
8095 then
8096         if test "x$cf_gnat_projects" != xyes
8097         then
8098                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
8099                 with_ada_sharedlib=no
8100         fi
8101 fi
8102
8103 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
8104 MAKE_ADA_SHAREDLIB="#"
8105
8106 if test "x$with_ada_sharedlib" != xno
8107 then
8108         MAKE_ADA_SHAREDLIB=
8109         if test "x$with_ada_sharedlib" != xyes
8110         then
8111                 ADA_SHAREDLIB="$with_ada_sharedlib"
8112         fi
8113 fi
8114
8115 AC_SUBST(ADA_SHAREDLIB)
8116 AC_SUBST(MAKE_ADA_SHAREDLIB)
8117 ])dnl
8118 dnl ---------------------------------------------------------------------------
8119 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
8120 dnl ----------------
8121 dnl Configure-option for dbmalloc.  The optional parameter is used to override
8122 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8123 AC_DEFUN([CF_WITH_DBMALLOC],[
8124 CF_NO_LEAKS_OPTION(dbmalloc,
8125         [  --with-dbmalloc         test: use Conor Cahill's dbmalloc library],
8126         [USE_DBMALLOC])
8127
8128 if test "$with_dbmalloc" = yes ; then
8129         AC_CHECK_HEADER(dbmalloc.h,
8130                 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
8131 fi
8132 ])dnl
8133 dnl ---------------------------------------------------------------------------
8134 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
8135 dnl ---------------
8136 dnl Configure-option for dmalloc.  The optional parameter is used to override
8137 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8138 AC_DEFUN([CF_WITH_DMALLOC],[
8139 CF_NO_LEAKS_OPTION(dmalloc,
8140         [  --with-dmalloc          test: use Gray Watson's dmalloc library],
8141         [USE_DMALLOC])
8142
8143 if test "$with_dmalloc" = yes ; then
8144         AC_CHECK_HEADER(dmalloc.h,
8145                 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
8146 fi
8147 ])dnl
8148 dnl ---------------------------------------------------------------------------
8149 dnl CF_WITH_EXPORT_SYMS version: 3 updated: 2014/12/20 19:16:08
8150 dnl -------------------
8151 dnl Use this with libtool to specify the list of symbols that may be exported.
8152 dnl The input file contains one symbol per line; comments work with "#".
8153 dnl
8154 dnl $1 = basename of the ".sym" file (default $PACKAGE)
8155 AC_DEFUN([CF_WITH_EXPORT_SYMS],
8156 [
8157 AC_MSG_CHECKING(if exported-symbols file should be used)
8158 AC_ARG_WITH(export-syms,
8159         [  --with-export-syms=XXX  limit exported symbols using libtool],
8160         [with_export_syms=$withval],
8161         [with_export_syms=no])
8162 if test "x$with_export_syms" = xyes
8163 then
8164         with_export_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).sym'
8165         AC_SUBST(PACKAGE)
8166 fi
8167 AC_MSG_RESULT($with_export_syms)
8168 if test "x$with_export_syms" != xno
8169 then
8170         EXPORT_SYMS="-export-symbols $with_export_syms"
8171         AC_SUBST(EXPORT_SYMS)
8172 fi
8173 ])dnl
8174 dnl ---------------------------------------------------------------------------
8175 dnl CF_WITH_GPM version: 10 updated: 2017/04/29 18:32:18
8176 dnl -----------
8177 dnl
8178 dnl The option parameter (if neither yes/no) is assumed to be the name of
8179 dnl the gpm library, e.g., for dynamic loading.
8180 AC_DEFUN([CF_WITH_GPM],
8181 [
8182 AC_MSG_CHECKING(if you want to link with the GPM mouse library)
8183 AC_ARG_WITH(gpm,
8184         [  --with-gpm              use Alessandro Rubini's GPM library],
8185         [with_gpm=$withval],
8186         [with_gpm=maybe])
8187 AC_MSG_RESULT($with_gpm)
8188
8189 if test "$with_gpm" != no ; then
8190         AC_CHECK_HEADER(gpm.h,[
8191                 AC_DEFINE(HAVE_GPM_H,1,[Define to 1 if we have gpm.h header])
8192                 if test "$with_gpm" != yes && test "$with_gpm" != maybe ; then
8193                         CF_VERBOSE(assuming we really have GPM library)
8194                         AC_DEFINE(HAVE_LIBGPM,1,[Define to 1 if we have the gpm library])
8195                         with_gpm=yes
8196                 else
8197                         AC_CHECK_LIB(gpm,Gpm_Open,[with_gpm=yes],[
8198                                 if test "$with_gpm" = maybe; then
8199                                         AC_MSG_WARN(Cannot link with GPM library)
8200                                         with_gpm=no
8201                                 else
8202                                         AC_MSG_ERROR(Cannot link with GPM library)
8203                                 fi
8204                         ])
8205                 fi
8206         ],[
8207                 test "$with_gpm" != maybe && AC_MSG_WARN(Cannot find GPM header)
8208                 with_gpm=no
8209         ])
8210 fi
8211 ])
8212 dnl ---------------------------------------------------------------------------
8213 dnl CF_WITH_LIBTOOL version: 35 updated: 2017/08/12 07:58:51
8214 dnl ---------------
8215 dnl Provide a configure option to incorporate libtool.  Define several useful
8216 dnl symbols for the makefile rules.
8217 dnl
8218 dnl The reference to AC_PROG_LIBTOOL does not normally work, since it uses
8219 dnl macros from libtool.m4 which is in the aclocal directory of automake.
8220 dnl Following is a simple script which turns on the AC_PROG_LIBTOOL macro.
8221 dnl But that still does not work properly since the macro is expanded outside
8222 dnl the CF_WITH_LIBTOOL macro:
8223 dnl
8224 dnl     #!/bin/sh
8225 dnl     ACLOCAL=`aclocal --print-ac-dir`
8226 dnl     if test -z "$ACLOCAL" ; then
8227 dnl             echo cannot find aclocal directory
8228 dnl             exit 1
8229 dnl     elif test ! -f $ACLOCAL/libtool.m4 ; then
8230 dnl             echo cannot find libtool.m4 file
8231 dnl             exit 1
8232 dnl     fi
8233 dnl
8234 dnl     LOCAL=aclocal.m4
8235 dnl     ORIG=aclocal.m4.orig
8236 dnl
8237 dnl     trap "mv $ORIG $LOCAL" 0 1 2 3 15
8238 dnl     rm -f $ORIG
8239 dnl     mv $LOCAL $ORIG
8240 dnl
8241 dnl     # sed the LIBTOOL= assignment to omit the current directory?
8242 dnl     sed -e 's/^LIBTOOL=.*/LIBTOOL=${LIBTOOL:-libtool}/' $ACLOCAL/libtool.m4 >>$LOCAL
8243 dnl     cat $ORIG >>$LOCAL
8244 dnl
8245 dnl     autoconf-257 $*
8246 dnl
8247 AC_DEFUN([CF_WITH_LIBTOOL],
8248 [
8249 AC_REQUIRE([CF_DISABLE_LIBTOOL_VERSION])
8250 ifdef([AC_PROG_LIBTOOL],,[
8251 LIBTOOL=
8252 ])
8253 # common library maintenance symbols that are convenient for libtool scripts:
8254 LIB_CREATE='${AR} -cr'
8255 LIB_OBJECT='${OBJECTS}'
8256 LIB_SUFFIX=.a
8257 LIB_PREP="$RANLIB"
8258
8259 # symbols used to prop libtool up to enable it to determine what it should be
8260 # doing:
8261 LIB_CLEAN=
8262 LIB_COMPILE=
8263 LIB_LINK='${CC}'
8264 LIB_INSTALL=
8265 LIB_UNINSTALL=
8266
8267 AC_MSG_CHECKING(if you want to build libraries with libtool)
8268 AC_ARG_WITH(libtool,
8269         [  --with-libtool          generate libraries with libtool],
8270         [with_libtool=$withval],
8271         [with_libtool=no])
8272 AC_MSG_RESULT($with_libtool)
8273 if test "$with_libtool" != "no"; then
8274 ifdef([AC_PROG_LIBTOOL],[
8275         # missing_content_AC_PROG_LIBTOOL{{
8276         AC_PROG_LIBTOOL
8277         # missing_content_AC_PROG_LIBTOOL}}
8278 ],[
8279         if test "$with_libtool" != "yes" ; then
8280                 CF_PATH_SYNTAX(with_libtool)
8281                 LIBTOOL=$with_libtool
8282         else
8283                 AC_CHECK_TOOLS(LIBTOOL,[libtool glibtool],none)
8284                 CF_LIBTOOL_VERSION
8285                 if test -z "$cf_cv_libtool_version" && test "$LIBTOOL" = libtool
8286                 then
8287                         CF_FORGET_TOOL(LIBTOOL)
8288                         AC_CHECK_TOOLS(LIBTOOL,[glibtool],none)
8289                         CF_LIBTOOL_VERSION
8290                 fi
8291         fi
8292         if test -z "$LIBTOOL" ; then
8293                 AC_MSG_ERROR(Cannot find libtool)
8294         fi
8295 ])dnl
8296         LIB_CREATE='${LIBTOOL} --mode=link ${CC} -rpath ${libdir} ${LIBTOOL_VERSION} `cut -f1 ${top_srcdir}/VERSION` ${LIBTOOL_OPTS} ${LT_UNDEF} $(LIBS) -o'
8297         LIB_OBJECT='${OBJECTS:.o=.lo}'
8298         LIB_SUFFIX=.la
8299         LIB_CLEAN='${LIBTOOL} --mode=clean'
8300         LIB_COMPILE='${LIBTOOL} --mode=compile'
8301         LIB_LINK='${LIBTOOL} --mode=link ${CC} ${LIBTOOL_OPTS}'
8302         LIB_INSTALL='${LIBTOOL} --mode=install'
8303         LIB_UNINSTALL='${LIBTOOL} --mode=uninstall'
8304         LIB_PREP=:
8305
8306         CF_CHECK_LIBTOOL_VERSION
8307
8308         # special hack to add -no-undefined (which libtool should do for itself)
8309         LT_UNDEF=
8310         case "$cf_cv_system_name" in
8311         (cygwin*|msys*|mingw32*|os2*|uwin*|aix[[4-7]])
8312                 LT_UNDEF=-no-undefined
8313                 ;;
8314         esac
8315         AC_SUBST([LT_UNDEF])
8316
8317         # special hack to add --tag option for C++ compiler
8318         case $cf_cv_libtool_version in
8319         (1.[[5-9]]*|[[2-9]].[[0-9.a-z]]*)
8320                 LIBTOOL_CXX="$LIBTOOL --tag=CXX"
8321                 LIBTOOL="$LIBTOOL --tag=CC"
8322                 ;;
8323         (*)
8324                 LIBTOOL_CXX="$LIBTOOL"
8325                 ;;
8326         esac
8327 else
8328         LIBTOOL=""
8329         LIBTOOL_CXX=""
8330 fi
8331
8332 test -z "$LIBTOOL" && ECHO_LT=
8333
8334 AC_SUBST(LIBTOOL)
8335 AC_SUBST(LIBTOOL_CXX)
8336 AC_SUBST(LIBTOOL_OPTS)
8337
8338 AC_SUBST(LIB_CREATE)
8339 AC_SUBST(LIB_OBJECT)
8340 AC_SUBST(LIB_SUFFIX)
8341 AC_SUBST(LIB_PREP)
8342
8343 AC_SUBST(LIB_CLEAN)
8344 AC_SUBST(LIB_COMPILE)
8345 AC_SUBST(LIB_LINK)
8346 AC_SUBST(LIB_INSTALL)
8347 AC_SUBST(LIB_UNINSTALL)
8348
8349 ])dnl
8350 dnl ---------------------------------------------------------------------------
8351 dnl CF_WITH_LIBTOOL_OPTS version: 4 updated: 2015/04/17 21:13:04
8352 dnl --------------------
8353 dnl Allow user to pass additional libtool options into the library creation
8354 dnl and link steps.  The main use for this is to do something like
8355 dnl     ./configure --with-libtool-opts=-static
8356 dnl to get the same behavior as automake-flavored
8357 dnl     ./configure --enable-static
8358 AC_DEFUN([CF_WITH_LIBTOOL_OPTS],[
8359 AC_MSG_CHECKING(for additional libtool options)
8360 AC_ARG_WITH(libtool-opts,
8361         [  --with-libtool-opts=XXX specify additional libtool options],
8362         [with_libtool_opts=$withval],
8363         [with_libtool_opts=no])
8364 AC_MSG_RESULT($with_libtool_opts)
8365
8366 case .$with_libtool_opts in
8367 (.yes|.no|.)
8368         ;;
8369 (*)
8370         LIBTOOL_OPTS="$LIBTOOL_OPTS $with_libtool_opts"
8371         ;;
8372 esac
8373
8374 AC_SUBST(LIBTOOL_OPTS)
8375 ])dnl
8376 dnl ---------------------------------------------------------------------------
8377 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
8378 dnl ------------------
8379 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
8380 dnl "lib" prefix, e.g., because it used the dll naming convention.
8381 dnl
8382 dnl $1 = variable to set
8383 AC_DEFUN([CF_WITH_LIB_PREFIX],
8384 [
8385 AC_MSG_CHECKING(if you want to have a library-prefix)
8386 AC_ARG_WITH(lib-prefix,
8387         [  --with-lib-prefix       override library-prefix],
8388         [with_lib_prefix=$withval],
8389         [with_lib_prefix=auto])
8390 AC_MSG_RESULT($with_lib_prefix)
8391
8392 if test $with_lib_prefix = auto
8393 then
8394         CF_LIB_PREFIX($1)
8395 elif test $with_lib_prefix = no
8396 then
8397         LIB_PREFIX=
8398 else
8399         LIB_PREFIX=$with_lib_prefix
8400 fi
8401 ])dnl
8402 dnl ---------------------------------------------------------------------------
8403 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
8404 dnl ------------
8405 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
8406 dnl defaulting to yes/no.
8407 dnl
8408 dnl $1 = option name
8409 dnl $2 = help-text
8410 dnl $3 = environment variable to set
8411 dnl $4 = default value, shown in the help-message, must be a constant
8412 dnl $5 = default value, if it's an expression & cannot be in the help-message
8413 dnl
8414 AC_DEFUN([CF_WITH_PATH],
8415 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
8416 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
8417 if ifelse([$5],,true,[test -n "$5"]) ; then
8418 CF_PATH_SYNTAX(withval)
8419 fi
8420 eval $3="$withval"
8421 AC_SUBST($3)dnl
8422 ])dnl
8423 dnl ---------------------------------------------------------------------------
8424 dnl CF_WITH_PATHLIST version: 10 updated: 2015/04/17 21:13:04
8425 dnl ----------------
8426 dnl Process an option specifying a list of colon-separated paths.
8427 dnl
8428 dnl $1 = option name
8429 dnl $2 = help-text
8430 dnl $3 = environment variable to set
8431 dnl $4 = default value, shown in the help-message, must be a constant
8432 dnl $5 = default value, if it's an expression & cannot be in the help-message
8433 dnl $6 = flag to tell if we want to define or substitute
8434 dnl
8435 AC_DEFUN([CF_WITH_PATHLIST],[
8436 AC_REQUIRE([CF_PATHSEP])
8437 AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
8438 ifelse($4,,[withval=${$3}],[withval=${$3:-ifelse($5,,$4,$5)}]))dnl
8439
8440 IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${PATH_SEPARATOR}"
8441 cf_dst_path=
8442 for cf_src_path in $withval
8443 do
8444   CF_PATH_SYNTAX(cf_src_path)
8445   test -n "$cf_dst_path" && cf_dst_path="${cf_dst_path}$PATH_SEPARATOR"
8446   cf_dst_path="${cf_dst_path}${cf_src_path}"
8447 done
8448 IFS="$ac_save_ifs"
8449
8450 ifelse($6,define,[
8451 # Strip single quotes from the value, e.g., when it was supplied as a literal
8452 # for $4 or $5.
8453 case $cf_dst_path in
8454 (\'*)
8455   cf_dst_path=`echo $cf_dst_path |sed -e s/\'// -e s/\'\$//`
8456   ;;
8457 esac
8458 cf_dst_path=`echo "$cf_dst_path" | sed -e 's/\\\\/\\\\\\\\/g'`
8459 ])
8460
8461 # This may use the prefix/exec_prefix symbols which will only yield "NONE"
8462 # so we have to check/work around.  We do prefer the result of "eval"...
8463 eval cf_dst_eval="$cf_dst_path"
8464 case "x$cf_dst_eval" in
8465 (xNONE*)
8466         $3=$cf_dst_path
8467         ;;
8468 (*)
8469         $3="$cf_dst_eval"
8470         ;;
8471 esac
8472 AC_SUBST($3)dnl
8473
8474 ])dnl
8475 dnl ---------------------------------------------------------------------------
8476 dnl CF_WITH_PATH_PROG version: 1 updated: 2019/06/30 19:44:43
8477 dnl -----------------
8478 dnl Check for a given program, like CF_PATH_PROG, but allow override using a
8479 dnl "--with-xxx" option.
8480 dnl
8481 dnl Parameters:
8482 dnl             $1 = environment variable to set/update
8483 dnl             $2 = program name
8484 dnl             $3 = help-text
8485 dnl             $4 = $PATH
8486 AC_DEFUN([CF_WITH_PATH_PROG],[
8487 AC_ARG_WITH($2-path,
8488         [  --with-$2-path=XXX     specify path of $2 ifelse($3,,,$3)],
8489         [AC_MSG_CHECKING(for $2 program ifelse($3,,,$3))
8490                 $1=$withval
8491                 AC_MSG_RESULT([$]$1)
8492                 CF_PATH_SYNTAX($1)
8493         ],
8494         [CF_PATH_PROG($1,$2,,ifelse($4,,,$4))
8495                 if test -z "[$]$1"
8496                 then
8497                         AC_MSG_WARN(no $2 program found ifelse($3,,,$3))
8498                 fi
8499         ])
8500 ])
8501 dnl ---------------------------------------------------------------------------
8502 dnl CF_WITH_PCRE2 version: 3 updated: 2020/02/29 16:09:19
8503 dnl -------------
8504 dnl Add PCRE2 (Perl-compatible regular expressions v2) to the build if it is
8505 dnl available and the user requests it.  Assume the application will otherwise
8506 dnl use the POSIX interface.
8507 dnl
8508 dnl TODO allow $withval to specify package location
8509 AC_DEFUN([CF_WITH_PCRE2],
8510 [
8511 AC_REQUIRE([CF_PKG_CONFIG])
8512
8513 AC_MSG_CHECKING(if you want to use PCRE2 for regular-expressions)
8514 AC_ARG_WITH(pcre2,
8515         [  --with-pcre2            use PCRE2 for regular-expressions])
8516 test -z "$with_pcre2" && with_pcre2=no
8517 AC_MSG_RESULT($with_pcre2)
8518
8519 if test "x$with_pcre2" != xno ; then
8520         CF_TRY_PKG_CONFIG(libpcre2,,[
8521         CF_TRY_PKG_CONFIG(libpcre,,[
8522                         AC_MSG_ERROR(Cannot find PCRE2 library)])])
8523
8524         AC_DEFINE(HAVE_LIB_PCRE2,1,[Define to 1 if we can/should compile with the PCRE2 library])
8525
8526         # if pkgconfig gave no results, look for the libraries directly
8527         case $LIBS in
8528         (*pcre2-posix*|*pcreposix*)
8529                 ;;
8530         (*)
8531                 AC_CHECK_LIB(pcre2-posix,regcomp,[
8532                         CF_ADD_LIB(pcre2-posix)],
8533                         [AC_CHECK_LIB(pcreposix,regcomp,[
8534                          CF_ADD_LIB(pcreposix)
8535                         ],[AC_MSG_ERROR(Cannot find PCRE2 POSIX library)])])
8536                 ;;
8537         esac
8538
8539         # either way, check for the library header files
8540         AC_CHECK_HEADERS(pcre2posix.h pcreposix.h)
8541 fi
8542 ])dnl
8543 dnl ---------------------------------------------------------------------------
8544 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
8545 dnl -------------------------
8546 dnl Allow the choice of the pkg-config library directory to be overridden.
8547 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
8548
8549 case $PKG_CONFIG in
8550 (no|none|yes)
8551         AC_MSG_CHECKING(for pkg-config library directory)
8552         ;;
8553 (*)
8554         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
8555         ;;
8556 esac
8557
8558 PKG_CONFIG_LIBDIR=no
8559 AC_ARG_WITH(pkg-config-libdir,
8560         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
8561         [PKG_CONFIG_LIBDIR=$withval],
8562         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
8563
8564 case x$PKG_CONFIG_LIBDIR in
8565 (x/*)
8566         ;;
8567 (xyes)
8568         # Look for the library directory using the same prefix as the executable
8569         if test "x$PKG_CONFIG" = xnone
8570         then
8571                 cf_path=$prefix
8572         else
8573                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
8574         fi
8575
8576         # If you don't like using the default architecture, you have to specify the
8577         # intended library directory and corresponding compiler/linker options.
8578         #
8579         # This case allows for Debian's 2014-flavor of multiarch, along with the
8580         # most common variations before that point.  Some other variants spell the
8581         # directory differently, e.g., "pkg-config", and put it in unusual places.
8582         # pkg-config has always been poorly standardized, which is ironic...
8583         case x`(arch) 2>/dev/null` in
8584         (*64)
8585                 cf_search_path="\
8586                         $cf_path/lib/*64-linux-gnu \
8587                         $cf_path/share \
8588                         $cf_path/lib64 \
8589                         $cf_path/lib32 \
8590                         $cf_path/lib"
8591                 ;;
8592         (*)
8593                 cf_search_path="\
8594                         $cf_path/lib/*-linux-gnu \
8595                         $cf_path/share \
8596                         $cf_path/lib32 \
8597                         $cf_path/lib \
8598                         $cf_path/libdata"
8599                 ;;
8600         esac
8601
8602         CF_VERBOSE(list...)
8603         for cf_config in $cf_search_path
8604         do
8605                 CF_VERBOSE(checking $cf_config/pkgconfig)
8606                 if test -d $cf_config/pkgconfig
8607                 then
8608                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
8609                         AC_MSG_CHECKING(done)
8610                         break
8611                 fi
8612         done
8613         ;;
8614 (*)
8615         ;;
8616 esac
8617
8618 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
8619         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
8620 fi
8621
8622 AC_SUBST(PKG_CONFIG_LIBDIR)
8623 ])dnl
8624 dnl ---------------------------------------------------------------------------
8625 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
8626 dnl ---------------
8627 dnl Check for POSIX thread library.
8628 AC_DEFUN([CF_WITH_PTHREAD],
8629 [
8630 AC_MSG_CHECKING(if you want to link with the pthread library)
8631 AC_ARG_WITH(pthread,
8632         [  --with-pthread          use POSIX thread library],
8633         [with_pthread=$withval],
8634         [with_pthread=no])
8635 AC_MSG_RESULT($with_pthread)
8636
8637 if test "$with_pthread" != no ; then
8638         AC_CHECK_HEADER(pthread.h,[
8639         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
8640
8641         for cf_lib_pthread in pthread c_r
8642         do
8643             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
8644             cf_save_LIBS="$LIBS"
8645             CF_ADD_LIB($cf_lib_pthread)
8646             AC_TRY_LINK([
8647 #include <pthread.h>
8648 ],[
8649                 int rc = pthread_create(0,0,0,0);
8650                 int r2 = pthread_mutexattr_settype(0, 0);
8651 ],[with_pthread=yes],[with_pthread=no])
8652             LIBS="$cf_save_LIBS"
8653             AC_MSG_RESULT($with_pthread)
8654             test "$with_pthread" = yes && break
8655         done
8656
8657         if test "$with_pthread" = yes ; then
8658             CF_ADD_LIB($cf_lib_pthread)
8659             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
8660         else
8661             AC_MSG_ERROR(Cannot link with pthread library)
8662         fi
8663         ])
8664 fi
8665 ])
8666 dnl ---------------------------------------------------------------------------
8667 dnl CF_WITH_REL_VERSION version: 1 updated: 2003/09/20 18:12:49
8668 dnl -------------------
8669 dnl Allow library's release-version to be overridden.  Generally this happens when a
8670 dnl packager has incremented the release-version past that used in the original package,
8671 dnl and wishes to keep doing this.
8672 dnl
8673 dnl $1 is the package name, if any, to derive corresponding {package}_MAJOR
8674 dnl and {package}_MINOR symbols
8675 dnl symbol.
8676 AC_DEFUN([CF_WITH_REL_VERSION],[
8677 test -z "$cf_cv_rel_version" && cf_cv_rel_version=0.0
8678 AC_ARG_WITH(rel-version,
8679 [  --with-rel-version=XXX  override derived release version],
8680 [AC_MSG_WARN(overriding release version $cf_cv_rel_version to $withval)
8681  cf_cv_rel_version=$withval])
8682 ifelse($1,,[
8683  CF_NUMBER_SYNTAX($cf_cv_rel_version,Release version)
8684 ],[
8685  $1_MAJOR=`echo "$cf_cv_rel_version" | sed -e 's/\..*//'`
8686  $1_MINOR=`echo "$cf_cv_rel_version" | sed -e 's/^[[^.]]*//' -e 's/^\.//' -e 's/\..*//'`
8687  CF_NUMBER_SYNTAX([$]$1_MAJOR,Release major-version)
8688  CF_NUMBER_SYNTAX([$]$1_MINOR,Release minor-version)
8689 ])
8690 ])dnl
8691 dnl ---------------------------------------------------------------------------
8692 dnl CF_WITH_SYSMOUSE version: 3 updated: 2012/10/06 17:56:13
8693 dnl ----------------
8694 dnl If we can compile with sysmouse, make it available unless it is not wanted.
8695 AC_DEFUN([CF_WITH_SYSMOUSE],[
8696 # not everyone has "test -c"
8697 if test -c /dev/sysmouse 2>/dev/null ; then
8698 AC_MSG_CHECKING(if you want to use sysmouse)
8699 AC_ARG_WITH(sysmouse,
8700         [  --with-sysmouse         use sysmouse (FreeBSD console)],
8701         [cf_with_sysmouse=$withval],
8702         [cf_with_sysmouse=maybe])
8703         if test "$cf_with_sysmouse" != no ; then
8704         AC_TRY_COMPILE([
8705 #include <osreldate.h>
8706 #if (__FreeBSD_version >= 400017)
8707 #include <sys/consio.h>
8708 #include <sys/fbio.h>
8709 #else
8710 #include <machine/console.h>
8711 #endif
8712 ],[
8713         struct mouse_info the_mouse;
8714         ioctl(0, CONS_MOUSECTL, &the_mouse);
8715 ],[cf_with_sysmouse=yes],[cf_with_sysmouse=no])
8716         fi
8717 AC_MSG_RESULT($cf_with_sysmouse)
8718 test "$cf_with_sysmouse" = yes && AC_DEFINE(USE_SYSMOUSE,1,[Define to 1 if we can/should use the sysmouse interface])
8719 fi
8720 ])dnl
8721 dnl ---------------------------------------------------------------------------
8722 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
8723 dnl ---------------
8724 dnl For testing, override the derived host system-type which is used to decide
8725 dnl things such as the linker commands used to build shared libraries.  This is
8726 dnl normally chosen automatically based on the type of system which you are
8727 dnl building on.  We use it for testing the configure script.
8728 dnl
8729 dnl This is different from the --host option: it is used only for testing parts
8730 dnl of the configure script which would not be reachable with --host since that
8731 dnl relies on the build environment being real, rather than mocked up.
8732 AC_DEFUN([CF_WITH_SYSTYPE],[
8733 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
8734 AC_ARG_WITH(system-type,
8735         [  --with-system-type=XXX  test: override derived host system-type],
8736 [AC_MSG_WARN(overriding system type to $withval)
8737         cf_cv_system_name=$withval
8738         host_os=$withval
8739 ])
8740 ])dnl
8741 dnl ---------------------------------------------------------------------------
8742 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
8743 dnl ----------------
8744 AC_DEFUN([CF_WITH_VALGRIND],[
8745 CF_NO_LEAKS_OPTION(valgrind,
8746         [  --with-valgrind         test: use valgrind],
8747         [USE_VALGRIND])
8748 ])dnl
8749 dnl ---------------------------------------------------------------------------
8750 dnl CF_WITH_VERSIONED_SYMS version: 8 updated: 2018/10/20 20:24:34
8751 dnl ----------------------
8752 dnl Use this when building shared library with ELF, to markup symbols with the
8753 dnl version identifier from the given input file.  Generally that identifier is
8754 dnl the same as the SONAME at which the symbol was first introduced.
8755 dnl
8756 dnl $1 = basename of the ".map" file (default $PACKAGE)
8757 AC_DEFUN([CF_WITH_VERSIONED_SYMS],
8758 [
8759 AC_MSG_CHECKING(if versioned-symbols file should be used)
8760 AC_ARG_WITH(versioned-syms,
8761         [  --with-versioned-syms=X markup versioned symbols using ld],
8762         [with_versioned_syms=$withval],
8763         [with_versioned_syms=no])
8764 case "x$with_versioned_syms" in
8765 (xyes)
8766         with_versioned_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).map'
8767         AC_SUBST(PACKAGE)
8768         ;;
8769 (xno)
8770         ;;
8771 (x/*)
8772         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
8773         ;;
8774 (*)
8775         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
8776         with_versioned_syms=`pwd`/"$with_versioned_syms"
8777         ;;
8778 esac
8779 AC_MSG_RESULT($with_versioned_syms)
8780
8781 RESULTING_SYMS=
8782 VERSIONED_SYMS=
8783 WILDCARD_SYMS=
8784
8785 if test "x$with_versioned_syms" != xno
8786 then
8787         RESULTING_SYMS=$with_versioned_syms
8788         case "x$MK_SHARED_LIB" in
8789         (*-Wl,*)
8790                 VERSIONED_SYMS="-Wl,--version-script,\${RESULTING_SYMS}"
8791                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-Wl,%\\[$]{VERSIONED_SYMS} -Wl,%"`
8792                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
8793                 ;;
8794         (*-dy\ *)
8795                 VERSIONED_SYMS="-Wl,-M,\${RESULTING_SYMS}"
8796                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-dy%\\[$]{VERSIONED_SYMS} -dy%"`
8797                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
8798                 ;;
8799         (*)
8800                 AC_MSG_WARN(this system does not support versioned-symbols)
8801                 ;;
8802         esac
8803
8804         # Linux ld can selectively override scope, e.g., of symbols beginning with
8805         # "_" by first declaring some as global, and then using a wildcard to
8806         # declare the others as local.  Some other loaders cannot do this.  Check
8807         # by constructing a (very) simple shared library and inspecting its
8808         # symbols.
8809         if test "x$VERSIONED_SYMS" != "x"
8810         then
8811                 AC_MSG_CHECKING(if wildcards can be used to selectively omit symbols)
8812                 WILDCARD_SYMS=no
8813
8814                 # make sources
8815                 rm -f conftest.*
8816
8817                 cat >conftest.ver <<EOF
8818 module_1.0 {
8819 global:
8820         globalf1;
8821 local:
8822         localf1;
8823 };
8824 module_2.0 {
8825 global:
8826         globalf2;
8827 local:
8828         localf2;
8829         _*;
8830 } module_1.0;
8831 submodule_1.0 {
8832 global:
8833         subglobalf1;
8834         _ismissing;
8835 local:
8836         sublocalf1;
8837 };
8838 submodule_2.0 {
8839 global:
8840         subglobalf2;
8841 local:
8842         sublocalf2;
8843         _*;
8844 } submodule_1.0;
8845 EOF
8846                 cat >conftest.$ac_ext <<EOF
8847 #line __oline__ "configure"
8848 int     _ismissing(void) { return 1; }
8849 int     _localf1(void) { return 1; }
8850 int     _localf2(void) { return 2; }
8851 int     globalf1(void) { return 1; }
8852 int     globalf2(void) { return 2; }
8853 int     _sublocalf1(void) { return 1; }
8854 int     _sublocalf2(void) { return 2; }
8855 int     subglobalf1(void) { return 1; }
8856 int     subglobalf2(void) { return 2; }
8857 EOF
8858                 cat >conftest.mk <<EOF
8859 CC=${CC}
8860 CFLAGS=${CFLAGS}
8861 CPPFLAGS=${CPPFLAGS}
8862 LDFLAGS=${LDFLAGS}
8863 LIBS=${LIBS}
8864 VERSIONED_SYMS=${VERSIONED_SYMS}
8865 RESULTING_SYMS=conftest.ver
8866 MK_SHARED_LIB=${MK_SHARED_LIB}
8867 conftest.so: conftest.$ac_cv_objext
8868                 \$(MK_SHARED_LIB) conftest.$ac_cv_objext
8869 EOF
8870
8871                 # compile source, make library
8872                 if make -f conftest.mk 2>&AC_FD_CC >/dev/null
8873                 then
8874                         # test for missing symbol in either Data or Text section
8875                         cf_missing=`nm -P conftest.so 2>&AC_FD_CC |fgrep _ismissing | egrep '[[         ]][[DT]][[      ]]'`
8876                         test -n "$cf_missing" && WILDCARD_SYMS=yes
8877                 fi
8878                 AC_MSG_RESULT($WILDCARD_SYMS)
8879                 rm -f conftest.*
8880         fi
8881 fi
8882 AC_SUBST(RESULTING_SYMS)
8883 AC_SUBST(VERSIONED_SYMS)
8884 AC_SUBST(WILDCARD_SYMS)
8885 ])dnl
8886 dnl ---------------------------------------------------------------------------
8887 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
8888 dnl ---------------
8889 dnl Handle configure option "--with-x11-rgb", setting these shell
8890 dnl variables:
8891 dnl
8892 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
8893 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
8894 dnl
8895 dnl Most Linux's use this:
8896 dnl     /usr/share/X11/rgb.txt
8897 dnl Debian uses this:
8898 dnl     /etc/X11/rgb.txt
8899 dnl DragonFlyBSD ports uses this:
8900 dnl     /usr/pkg/lib/X11/rgb.txt
8901 dnl FreeBSD ports use these:
8902 dnl     /usr/local/lib/X11/rgb.txt
8903 dnl     /usr/local/share/X11/rgb.txt
8904 dnl Mandriva has these:
8905 dnl     /usr/lib/X11/rgb.txt
8906 dnl     /usr/lib64/X11/rgb.txt
8907 dnl NetBSD has these
8908 dnl     /usr/X11R7/lib/X11/rgb.txt
8909 dnl OpenSolaris uses
8910 dnl     32-bit:
8911 dnl     /usr/X11/etc/X11/rgb.txt
8912 dnl     /usr/X11/share/X11/rgb.txt
8913 dnl     /usr/X11/lib/X11/rgb.txt
8914 dnl OSX uses
8915 dnl             /opt/local/share/X11/rgb.txt (MacPorts)
8916 dnl             /opt/X11/share/X11/rgb.txt (non-ports)
8917 dnl     64-bit:
8918 dnl     /usr/X11/etc/X11/rgb.txt
8919 dnl     /usr/X11/share/X11/rgb.txt (perhaps)
8920 dnl     /usr/X11/lib/amd64/X11/rgb.txt
8921 dnl Solaris10 uses (in this order):
8922 dnl     /usr/openwin/lib/X11/rgb.txt
8923 dnl     /usr/X11/lib/X11/rgb.txt
8924 AC_DEFUN([CF_WITH_X11_RGB],[
8925 AC_MSG_CHECKING(for X11 rgb file)
8926 AC_ARG_WITH(x11-rgb,
8927         [  --with-x11-rgb=FILE   file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
8928         [RGB_PATH=$withval],
8929         [RGB_PATH=auto])
8930
8931 if test "x[$]RGB_PATH" = xauto
8932 then
8933         RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
8934         for cf_path in \
8935                 /opt/local/share/X11/rgb.txt \
8936                 /opt/X11/share/X11/rgb.txt \
8937                 /usr/share/X11/rgb.txt \
8938                 /usr/X11/share/X11/rgb.txt \
8939                 /usr/X11/lib/X11/rgb.txt \
8940                 /usr/lib/X11/rgb.txt \
8941                 /etc/X11/rgb.txt \
8942                 /usr/pkg/lib/X11/rgb.txt \
8943                 /usr/X11R7/lib/X11/rgb.txt \
8944                 /usr/X11R6/lib/X11/rgb.txt \
8945                 /usr/X11R5/lib/X11/rgb.txt \
8946                 /usr/X11R4/lib/X11/rgb.txt \
8947                 /usr/local/lib/X11/rgb.txt \
8948                 /usr/local/share/X11/rgb.txt \
8949                 /usr/lib64/X11/rgb.txt
8950         do
8951                 if test -f "$cf_path" ; then
8952                         RGB_PATH="$cf_path"
8953                         break
8954                 fi
8955         done
8956 else
8957         cf_path=$RGB_PATH
8958         CF_PATH_SYNTAX(cf_path)
8959 fi
8960
8961 AC_MSG_RESULT($RGB_PATH)
8962 AC_SUBST(RGB_PATH)
8963 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
8964
8965 no_x11_rgb=
8966 if test "$RGB_PATH" = no
8967 then
8968         no_x11_rgb="#"
8969 fi
8970 AC_SUBST(no_x11_rgb)
8971 ])dnl
8972 dnl ---------------------------------------------------------------------------
8973 dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
8974 dnl ---------------
8975 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
8976 dnl or adapt to the vendor's definitions to get equivalent functionality,
8977 dnl without losing the common non-POSIX features.
8978 dnl
8979 dnl Parameters:
8980 dnl     $1 is the nominal value for _XOPEN_SOURCE
8981 dnl     $2 is the nominal value for _POSIX_C_SOURCE
8982 AC_DEFUN([CF_XOPEN_SOURCE],[
8983 AC_REQUIRE([AC_CANONICAL_HOST])
8984 AC_REQUIRE([CF_POSIX_VISIBLE])
8985
8986 if test "$cf_cv_posix_visible" = no; then
8987
8988 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
8989 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
8990 cf_xopen_source=
8991
8992 case $host_os in
8993 (aix[[4-7]]*)
8994         cf_xopen_source="-D_ALL_SOURCE"
8995         ;;
8996 (msys)
8997         cf_XOPEN_SOURCE=600
8998         ;;
8999 (darwin[[0-8]].*)
9000         cf_xopen_source="-D_APPLE_C_SOURCE"
9001         ;;
9002 (darwin*)
9003         cf_xopen_source="-D_DARWIN_C_SOURCE"
9004         cf_XOPEN_SOURCE=
9005         ;;
9006 (freebsd*|dragonfly*|midnightbsd*)
9007         # 5.x headers associate
9008         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
9009         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
9010         cf_POSIX_C_SOURCE=200112L
9011         cf_XOPEN_SOURCE=600
9012         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
9013         ;;
9014 (hpux11*)
9015         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
9016         ;;
9017 (hpux*)
9018         cf_xopen_source="-D_HPUX_SOURCE"
9019         ;;
9020 (irix[[56]].*)
9021         cf_xopen_source="-D_SGI_SOURCE"
9022         cf_XOPEN_SOURCE=
9023         ;;
9024 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
9025         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
9026         ;;
9027 (minix*)
9028         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
9029         ;;
9030 (mirbsd*)
9031         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
9032         cf_XOPEN_SOURCE=
9033         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
9034         ;;
9035 (netbsd*)
9036         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
9037         ;;
9038 (openbsd[[4-9]]*)
9039         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
9040         cf_xopen_source="-D_BSD_SOURCE"
9041         cf_XOPEN_SOURCE=600
9042         ;;
9043 (openbsd*)
9044         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
9045         ;;
9046 (osf[[45]]*)
9047         cf_xopen_source="-D_OSF_SOURCE"
9048         ;;
9049 (nto-qnx*)
9050         cf_xopen_source="-D_QNX_SOURCE"
9051         ;;
9052 (sco*)
9053         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
9054         ;;
9055 (solaris2.*)
9056         cf_xopen_source="-D__EXTENSIONS__"
9057         cf_cv_xopen_source=broken
9058         ;;
9059 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
9060         cf_XOPEN_SOURCE=
9061         cf_POSIX_C_SOURCE=
9062         ;;
9063 (*)
9064         CF_TRY_XOPEN_SOURCE
9065         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
9066         ;;
9067 esac
9068
9069 if test -n "$cf_xopen_source" ; then
9070         CF_ADD_CFLAGS($cf_xopen_source,true)
9071 fi
9072
9073 dnl In anything but the default case, we may have system-specific setting
9074 dnl which is still not guaranteed to provide all of the entrypoints that
9075 dnl _XOPEN_SOURCE would yield.
9076 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
9077         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
9078         AC_TRY_COMPILE([#include <stdlib.h>],[
9079 #ifndef _XOPEN_SOURCE
9080 make an error
9081 #endif],
9082         [cf_XOPEN_SOURCE_set=yes],
9083         [cf_XOPEN_SOURCE_set=no])
9084         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
9085         if test $cf_XOPEN_SOURCE_set = yes
9086         then
9087                 AC_TRY_COMPILE([#include <stdlib.h>],[
9088 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
9089 make an error
9090 #endif],
9091                 [cf_XOPEN_SOURCE_set_ok=yes],
9092                 [cf_XOPEN_SOURCE_set_ok=no])
9093                 if test $cf_XOPEN_SOURCE_set_ok = no
9094                 then
9095                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
9096                 fi
9097         else
9098                 CF_TRY_XOPEN_SOURCE
9099         fi
9100 fi
9101 fi # cf_cv_posix_visible
9102 ])